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

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

@ldionne This PR seems to have a lot of unrelated libc++ changes that somehow got pulled in?

Also, we'll have to think about the capacity for this. I believe we can only have five concurrent macOS jobs running at the same time. I'm not sure how many concurrent jobs the libc++ CI normally runs or how long the macOS jobs run for, but this could quickly end up becoming an issue. I don't think it would block too much else in the project though as everything (that I can think of) runs on Linux runners, other than the release jobs.

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