Staging pipeline should verify a minimal set of repos for a full and/or sdk-only release

[mmitche]

• [ ] This issue is blocking
• [ ] This issue is causing unreasonable pain

Based on a given MAJOR.MINOR, there is a set of expected repos. We should add verification that the set of expected repos is met. Lack of this means that some branding/dependency flow didn't happen.

6.0:

• [ ] runtime
• [ ] winforms
• [ ] wpf
• [ ] windowsdesktop
• [ ] efcore
• [ ] aspnetcore
• [ ] templating -> also for sdk only
• [ ] sdk -> also for sdk only
• [ ] installer -> also for sdk only

This shouldn't fail the pipeline, but should just cause the approval stage to fire.

[michellemcdaniel]

How early would you expect this to run? As part of the prep stage so that we trigger an alert early? Or in validation?

[mmitche]

Prep stage, in manifest validation?

[michellemcdaniel]

Makes sense to me