Specs api v1 controllers (#23930)

...ers/api/v1/accounts/familiar_followers_controller_spec.rb

...trollers/api/v1/accounts/featured_tags_controller_spec.rb

...ollers/api/v1/accounts/identity_proofs_controller_spec.rb

spec/controllers/api/v1/accounts/lookup_controller_spec.rb

...rs/api/v1/admin/canonical_email_blocks_controller_spec.rb

spec/controllers/api/v1/admin/dimensions_controller_spec.rb

...llers/api/v1/admin/email_domain_blocks_controller_spec.rb

spec/controllers/api/v1/admin/ip_blocks_controller_spec.rb

spec/controllers/api/v1/admin/measures_controller_spec.rb

spec/controllers/api/v1/admin/retention_controller_spec.rb

.../controllers/api/v1/admin/trends/links_controller_spec.rb

...ntrollers/api/v1/admin/trends/statuses_controller_spec.rb

spec/controllers/api/v1/admin/trends/tags_controller_spec.rb

spec/controllers/api/v1/directories_controller_spec.rb

...llers/api/v1/featured_tags/suggestions_controller_spec.rb

spec/controllers/api/v1/featured_tags_controller_spec.rb

...rollers/api/v1/instances/domain_blocks_controller_spec.rb

...api/v1/instances/extended_descriptions_controller_spec.rb

...lers/api/v1/instances/privacy_policies_controller_spec.rb

spec/controllers/api/v1/instances/rules_controller_spec.rb