[llvm] [workflows] Add post-commit job that periodically runs the clang static analyzer (PR #94106)

[Artem Dergachev via llvm-commits]

https://github.com/haoNoQ approved this pull request.

Aha yeah either way LGTM!

I'll take a look at that crash in a moment.

At some point we should just merge your python script directly into scan-build so that you didn't need to reinvent that wheel.

https://github.com/llvm/llvm-project/pull/94106