Bumps [jest-haste-map](https://github.com/facebook/jest/tree/HEAD/packages/jest-haste-map) from 26.1.0 to 26.2.2.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits/v26.2.2/packages/jest-haste-map

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Bumps [pkg-config](https://github.com/ruby-gnome/pkg-config) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/ruby-gnome/pkg-config/releases)
- [Changelog](https://github.com/ruby-gnome/pkg-config/blob/master/NEWS)
- [Commits](https://github.com/ruby-gnome/pkg-config/compare/1.4.1...1.4.2

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Bumps [premailer](https://github.com/premailer/premailer) from 1.12.1 to 1.13.1.
- [Release notes](https://github.com/premailer/premailer/releases)
- [Changelog](https://github.com/premailer/premailer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/premailer/premailer/compare/v1.12.1...v1.13.1

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Bumps [chunky_png](https://github.com/wvanbergen/chunky_png) from 1.3.11 to 1.3.12.
- [Release notes](https://github.com/wvanbergen/chunky_png/releases)
- [Changelog](https://github.com/wvanbergen/chunky_png/blob/master/CHANGELOG.rdoc)
- [Commits](https://github.com/wvanbergen/chunky_png/compare/v1.3.11...v1.3.12

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Bumps [rdf](https://github.com/ruby-rdf/rdf) from 3.1.4 to 3.1.5.
- [Release notes](https://github.com/ruby-rdf/rdf/releases)
- [Changelog](https://github.com/ruby-rdf/rdf/blob/develop/CHANGES.md)
- [Commits](https://github.com/ruby-rdf/rdf/compare/3.1.4...3.1.5

)

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Bumps [use-latest](https://github.com/Andarist/use-latest) from 1.0.0 to 1.1.0.
- [Release notes](https://github.com/Andarist/use-latest/releases)
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Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.75.0 to 1.76.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/commits

)

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Bumps [brakeman](https://github.com/presidentbeef/brakeman) from 4.8.2 to 4.9.0.
- [Release notes](https://github.com/presidentbeef/brakeman/releases)
- [Changelog](https://github.com/presidentbeef/brakeman/blob/main/CHANGES.md)
- [Commits](https://github.com/presidentbeef/brakeman/compare/v4.8.2...v4.9.0

)

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Bumps [concurrent-ruby](https://github.com/ruby-concurrency/concurrent-ruby) from 1.1.6 to 1.1.7.
- [Release notes](https://github.com/ruby-concurrency/concurrent-ruby/releases)
- [Changelog](https://github.com/ruby-concurrency/concurrent-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ruby-concurrency/concurrent-ruby/compare/v1.1.6...v1.1.7

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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.10.5 to 7.11.1.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.11.1/packages/babel-core

)

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It seems that years ago, the “http” gem dependend on the “http_parser.rb” gem
(it now depends on the “http-parser” gem), and, still years ago, we pulled
it from git in order to benefit from a bugfix that wasn't released yet (#7467).

* Increase DNS timeout from 1 second to 5 seconds for MX check

1 seconds is rather short when using a recursive DNS resolver which
hasn't got a cached result already available. Use 5 seconds instead,
which is the timeout value we use for outgoing HTTP queries.

* Add more precise error messages for invalid e-mail addresses

* Fix client-side username validation at registration

It used the Account::USERNAME_RE regexp which is for *remote* users,
local user validation is stricter. Also take into account max username length.

* Add client-side form validation for password change

* Add client-side form validation to dedicated registration form

Previous changes only applied to the /about page, not the dedicated form on
/auth

* Add HTML-level validation of username in sign-up form

* Make required fields with incorrect values more visible

* Enable HTML form validation for the registration form

* Mark agreement checkbox as required client-side

* Add minimum length to password

* Add client-side password confirmation validation

Fixes #14523

Bumps [node-notifier](https://github.com/mikaelbr/node-notifier) from 7.0.1 to 7.0.2.
- [Release notes](https://github.com/mikaelbr/node-notifier/releases)
- [Changelog](https://github.com/mikaelbr/node-notifier/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mikaelbr/node-notifier/compare/v7.0.1...v7.0.2

)

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Bumps minipass-pipeline from 1.2.3 to 1.2.4.

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Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 5.11.0 to 5.11.2.
- [Release notes](https://github.com/testing-library/jest-dom/releases)
- [Changelog](https://github.com/testing-library/jest-dom/blob/master/CHANGELOG.md)
- [Commits](https://github.com/testing-library/jest-dom/compare/v5.11.0...v5.11.2

)

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Bumps [dom-accessibility-api](https://github.com/eps1lon/dom-accessibility-api) from 0.4.6 to 0.4.7.
- [Release notes](https://github.com/eps1lon/dom-accessibility-api/releases)
- [Changelog](https://github.com/eps1lon/dom-accessibility-api/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eps1lon/dom-accessibility-api/compare/v0.4.6...v0.4.7

)

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Bumps [postcss-modules-local-by-default](https://github.com/css-modules/postcss-modules-local-by-default) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/css-modules/postcss-modules-local-by-default/releases)
- [Changelog](https://github.com/css-modules/postcss-modules-local-by-default/blob/master/CHANGELOG.md)
- [Commits](https://github.com/css-modules/postcss-modules-local-by-default/compare/v3.0.2...v3.0.3

)

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Bumps [jest](https://github.com/facebook/jest) from 26.0.1 to 26.2.2.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/compare/v26.0.1...v26.2.2

)

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Bumps [csstype](https://github.com/frenic/csstype) from 2.6.10 to 2.6.13.
- [Release notes](https://github.com/frenic/csstype/releases)
- [Commits](https://github.com/frenic/csstype/compare/v2.6.10...v2.6.13

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Bumps [excon](https://github.com/excon/excon) from 0.75.0 to 0.76.0.
- [Release notes](https://github.com/excon/excon/releases)
- [Changelog](https://github.com/excon/excon/blob/master/changelog.txt)
- [Commits](https://github.com/excon/excon/compare/v0.75.0...v0.76.0

)

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Bumps [eslint](https://github.com/eslint/eslint) from 7.5.0 to 7.6.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.5.0...v7.6.0

)

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Bumps [pghero](https://github.com/ankane/pghero) from 2.6.0 to 2.7.0.
- [Release notes](https://github.com/ankane/pghero/releases)
- [Changelog](https://github.com/ankane/pghero/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ankane/pghero/compare/v2.6.0...v2.7.0

)

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Fixes #14511

Bumps [rubocop-ast](https://github.com/rubocop-hq/rubocop-ast) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/rubocop-hq/rubocop-ast/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-ast/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-ast/compare/v0.2.0...v0.3.0

)

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Bumps [elasticsearch](https://github.com/elastic/elasticsearch-ruby) from 7.8.0 to 7.8.1.
- [Release notes](https://github.com/elastic/elasticsearch-ruby/releases)
- [Changelog](https://github.com/elastic/elasticsearch-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/elastic/elasticsearch-ruby/compare/v7.8.0...v7.8.1

)

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Bumps [expect](https://github.com/facebook/jest/tree/HEAD/packages/expect) from 26.1.0 to 26.2.0.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits/v26.2.0/packages/expect

)

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Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.10.4 to 7.11.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.11.0/packages/babel-preset-env

)

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Bumps [aws-partitions](https://github.com/aws/aws-sdk-ruby) from 1.345.0 to 1.349.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-partitions/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/commits

)

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* Fix contrast calculation for thumbnail color extraction

Luminance calculation was using 0-255 RGB values instead of 0-1 sRGB values,
leading to incorrectly-computed contrast values.

Since we use ColorDiff already, just use its XYZ colorspace conversion code
to get the value.

* Require at least 3:1 contrast for both accent and foreground colors

* Lower required contrast for the accent color