chore: Add ci checks to annotate-snippets-rs

[Muscraft]

This PR adds a CI check for annotate-snippets ci job

[github-actions]

Dry-run check results

[WARN  sync_team] sync-team is running in dry mode, no changes will be applied.
[INFO  sync_team] synchronizing github
[INFO  sync_team] 💻 Team Diffs:
    📝 Editing team 'rust-lang/project-goal-reference-expansion':
      Deleting member 'rust-lang-owner'
    💻 Repo Diffs:
    📝 Editing repo 'rust-lang/annotate-snippets-rs':
      Branch Protections:
          master
            Required Checks: [] => ["ci"]