1. Get the spec for `lib/gitlab/auth.rb` passing.
- Make the `request` argument to `AccessTokenValidationService` optional -
`auth.rb` doesn't need to pass in a request.
- Pass in scopes in the format `[{ name: 'api' }]` rather than `['api']`, which
is what `AccessTokenValidationService` now expects.
2. Get the spec for `API::V3::Users` passing
2. Get the spec for `AccessTokenValidationService` passing
