Enable Rubocop HTTP status rules (#23717)

.rubocop.yml

.rubocop_todo.yml

app/controllers/api/v1/accounts_controller.rb

app/controllers/api/v1/emails/confirmations_controller.rb

app/controllers/auth/sessions_controller.rb

...controllers/concerns/two_factor_authentication_concern.rb

..._factor_authentication/webauthn_credentials_controller.rb

spec/controllers/admin/accounts_controller_spec.rb

spec/controllers/admin/base_controller_spec.rb

spec/controllers/admin/instances_controller_spec.rb

spec/controllers/admin/roles_controller_spec.rb

spec/controllers/admin/users/roles_controller.rb

...ontrollers/api/v1/accounts/credentials_controller_spec.rb

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

...rollers/api/v1/announcements/reactions_controller_spec.rb

spec/controllers/api/v1/announcements_controller_spec.rb

spec/controllers/api/v1/apps/credentials_controller_spec.rb

spec/controllers/api/v1/bookmarks_controller_spec.rb

...ontrollers/api/v1/emails/confirmations_controller_spec.rb

spec/controllers/api/v1/favourites_controller_spec.rb