chore: add python 3.12 wheels

[jbergstroem]

[!Warning] This is a work in progress. Do not merge.

Note: by updating the action to the maintained repository, Python 3.6 or older is no longer supported. Let me know if you would be ok with dropping support as well or if you prefer sticking around with older versions of the action.

CI run here: https://github.com/jbergstroem/python-zstd/actions/runs/9612503847/job/26513295941

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Todo

• [ ] Fix Invalid --only='""', must be a build selector with a known platform on Windows builds
• [ ] Rewrite action to use new version of cibuildwheel

[jbergstroem]

Closing since parts were merged.