chore(action): do not use pipx

[mayeut]

If #1743 is just meant to be temporary while waiting on actions/runner-images#9256, then that's ok.

However, if we need this in the long run, I'd rather not change the worker default environment. It's not necessarily an issue for github-hosted workers which are ephemeral but it could became an issue for self-hosted.

[henryiii]

Let's see if they re-add pipx, which I'd really hope they do. I should have limited the workaround to a subset of runners (macos-14 only? macos-13-xlarge? Ideally only AS arch only?)

[henryiii]

(It can also break later steps if people are doing things with setup-python and need a clean environments that doesn't have pipx's dependencies installed. cibuildwheel tends to be mostly standalone, which is nice, but not true for nox (where I haven't proposed a fix for this yet))

[henryiii]

Should we take these out of draft? I don't think pipx / built-in Python is coming back soon, and am fine with the workaround. (Also wntrblm/nox#768)

[joerick]

Looks good to me!

[nightlark]

I noticed a CI job is failing again on macOS due to the missing pipx when updating to the latest cibuildwheel release: nightlark/swig-pypi#123

Is there a recommended alternative (aside from migrating to scikit-build-core now)? Currently using pyproject.toml tool.cibuildwheel.before-all with pipx to ensure suitable cmake and ninja versions are installed.

[henryiii]

Migrating sounds good. :) But GHA is shipping pipx in the next image deployment. And you can pre-install pipx yourself in the mean time.

[nightlark]

Alright, good to hear -- looks like for now it will be pre-installing pipx, and hopefully soon get the migration to scikit-build-core merged. 😄