add new members to the compiler team

[davidtwco]

Welcome to the team!

cc @Amanieu, @dianne, @Enselic, @JonathanBrouwer and @tiif
r? @wesleywiser

[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/all':
      Adding member 'Enselic' with member role
      Adding member 'JonathanBrouwer' with member role
      Adding member 'dianne' with member role
      Adding member 'tiif' with member role
    📝 Editing team 'rust-lang/compiler':
      Adding member 'Amanieu' with member role
      Adding member 'Enselic' with member role
      Adding member 'JonathanBrouwer' with member role
      Adding member 'dianne' with member role
      Adding member 'tiif' with member role
    📝 Editing team 'rust-lang-nursery/compiler':
      Adding member 'Amanieu' with member role
      Adding member 'Enselic' with member role
      Adding member 'JonathanBrouwer' with member role
      Adding member 'dianne' with member role
      Adding member 'tiif' with member role