BLD: update CI and build, remove poetry, test on py 310, 311, 312

[fangchenli]

No description provided.

[tobywf]

Awesome, thank you! I'll look at this closer next week. For the error, I think -mmacosx-version-min=10.13 could fix it? In build.py:

    extra_compile_args=[
        "-mmacosx-version-min=10.13",
        "-Wall",
        "-Wextra",
        "-Wpedantic",
        "-Werror",
    ],

One question I did have: The release workflow doesn't seem to automatically create a GitHub release? That isn't a blocker per se for this PR, but would be nice to keep if you feel up for it. Although testing the release workflow is a bit annoying; you can see one attempt in the old code via the branch workflow_release.

[tobywf]

Awesome work, thank you! Glad the compile argument for the macOS version worked.

[tobywf]

For future reference, I had to use the env var MACOSX_DEPLOYMENT_TARGET instead of -mmacosx-version-min, so the wheel had the correct OS version in the name.