Default deploy example and MacOS wheels

[rushter]

Posting this for visibility, so other people can find it.

I've updated my old GH Actions config to the latest cbuildwheel deploy example and could get it to work.
After a few hours of debugging, I figured out, that

          - os: macos-intel
            runs-on: macos-13
          - os: macos-arm
            runs-on: macos-latest

Produce exactly the same files (both arm and x86-x64), but twice.

When the download step executes, it corrupts wheels when merging since they have the same names:

    steps:
      - uses: actions/download-artifact@v4
        with:
          # unpacks all CIBW artifacts into dist/
          pattern: cibw-*
          path: dist
          merge-multiple: true

This results in the following error:

Traceback (most recent call last):
  File "/root/.local/bin/twine", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/__main__.py", line 33, in main
    error = cli.dispatch(sys.argv[1:])
            ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/cli.py", line 139, in dispatch
    return main(args.args)
           ^^^^^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/commands/check.py", line 195, in main
    return check(parsed_args.dists, strict=parsed_args.strict)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/commands/check.py", line 141, in check
    warnings, is_ok = _check_file(filename, render_warning_stream)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/commands/check.py", line 84, in _check_file
    package = package_file.PackageFile.from_filename(filename, comment=None)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/package.py", line 202, in from_filename
    data = dist.read()
           ^^^^^^^^^^^
  File "/root/.local/lib/python3.12/site-packages/twine/wheel.py", line 56, in read
    archive = zipfile.ZipFile(fqn)
              ^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/zipfile/__init__.py", line [135](https://github.com/rushter/selectolax/actions/runs/15668298232/job/44135583456#step:3:141)4, in __init__
    self._RealGetContents()
  File "/usr/local/lib/python3.12/zipfile/__init__.py", line 1451, in _RealGetContents
    raise BadZipFile("Bad magic number for central directory")
zipfile.BadZipFile: Bad magic number for central directory
Checking dist/selectolax-0.3.30-cp310-cp310-macosx_10_9_x86_64.whl:

The reason on why this happens is because I had the following option set in my pyproject.toml:

macos.archs = ["x86_64", "arm64"]

Such setup conflicts and this line should be removed from the pyproject.toml file. Alternatively, only one version of macos can be kept in the matrix section.