ci: macOS brew outdated / upgrade macOS version?

[real-or-random]

CI is currently failing on macOS. This should be resolved once the GitHub Actions image is updated to have brew 4.3.1, which has the fix (Homebrew/brew#17336). The images are updated every week, so the issue should just disappear in a few days.

Originally posted by @real-or-random in #1517 (comment)

[real-or-random]

The images are updated every week, so the issue should just disappear in a few days.

Apparently, the last update of the macOS 12 build is almost two weeks ago, see https://github.com/actions/runner-images?tab=readme-ov-file#available-images. Maybe that's a good opportunity to move to macOS 13 or 14. Valgrind shouldn't be a problem: https://github.com/LouisBrunner/valgrind-macos?tab=readme-ov-file#status

@hebasto Any thoughts on this?

[hebasto]

They started updating images yesterday: https://github.com/actions/runner-images/tags. So I'm expecting an updated macOS 12 image this week as well.

Maybe that's a good opportunity to move to macOS 13 or 14.

The free macOS 14 image has arm64 architecture. Please see #1488.

[hebasto]

They started updating images yesterday: https://github.com/actions/runner-images/tags. So I'm expecting an updated macOS 12 image this week as well.

https://github.com/actions/runner-images/releases/tag/macos-12/20240527.4

[real-or-random]

The image has been updated, and I've triggered reruns for all PRs that still had a failing status due to this.