Verify that deploy token has valid access when pulling container registry image

What does this MR do?

Add missing specs DeployToken's on Auth::ContainerRegistryAuthenticationService. Also ensures Deploy Tokens are active (not revoked) and has read_registry as a scope

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests added for this feature/bug
• Review
  • Has been reviewed by Backend
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together
• Internationalization required/considered
• End-to-end tests pass (package-and-qa manual pipeline job)

What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/45148