[libcxx-commits] [libcxx] [llvm] [libc++] Move some macOS CI jobs to Github actions (PR #89083)

[Tom Stellard via libcxx-commits]

tstellar wrote:

> Yes, we could do that or we could pay for additional capacity on Github directly. I have been maintaining the Foundation macOS nodes and not having to do that anymore is the main motivation for this change.

Would we be able to repurpose those machines into self-hosted GitHub runners?  If so, I can help with the maintenance of those machines.  That would help ensure we have the capacity we need.

https://github.com/llvm/llvm-project/pull/89083