macOS failing on Python 3.8

[jaraco]

Recently, CI jobs started failing for macOS on Python 3.8:

Version ~3.8.0-0 was not found in the local cache
Error: The version '3.8' with architecture 'arm64' was not found for macOS 14.4.1.
The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

[jaraco]

Maybe related: actions/setup-python#808

[jaraco]

That links to actions/setup-python#850, definitely relevant.

[jaraco]

Looks like macos-latest since migrating to macos-14-arm64 no longer supports Python 3.9 or earlier. grr.

[jaraco]

I've opted to just suppress the failure. I'm disinclined to spend time and energy revamping the matrix to support more Pythons. If it's not important enough for GitHub to cover the combination, it's not important enough for me and my projects. I'll just spot-check macos on Python 3.8 as needed.

[bswck]

See also actions/setup-python#696.