config

* Bump rack-attack from 6.5.0 to 6.6.0

Bumps [rack-attack](https://github.com/rack/rack-attack) from 6.5.0 to 6.6.0.
- [Release notes](https://github.com/rack/rack-attack/releases)
- [Changelog](https://github.com/rack/rack-attack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rack/rack-attack/compare/v6.5.0...v6.6.0

)

---
updated-dependencies:
- dependency-name: rack-attack
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Fix usage of deprecated API

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>