Build Status: Improve automation

[amotl]

Is there a way we can automate checks to ensure that new projects will be flagged?

Originally posted by @kneth in #146 (review)

[amotl]

There is also a gap in automation for existing projects, causing more serious troubles. CI/GHA jobs regularly hibernate, because of the reason outlined below.

Important

Please make sure to also add this obstacle to your personal recurrent check list. 🙏

[kneth]

also a gap in automation for existing projects

There is a longer discussion in https://stackoverflow.com/questions/67184368/prevent-scheduled-github-actions-from-becoming-disabled about work-arounds.

[amotl]

GitHub Workflow Immortality sounds nice, thanks! Now, who is going to implement it? ;]

/cc @bmunkholm