[llvm-branch-commits] [llvm] workflows/premerge: Enable macos builds (PR #125176)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 approved this pull request.

LGTM.

Eventually we will want to turn on the premerge jobs as we plan on sunsetting the Buildkite infrastructure once the new self-hosted GHA runner system is stable. I can help backport and patches that need to make it to the release branch.

https://github.com/llvm/llvm-project/pull/125176