While universal2 wheels can be built on x86_64, the arm64 part of them cannot currently be tested. The ability to test the arm64 part of a universal2 wheel will be added in a future release of cibuildwheel, once Apple Silicon CI runners are widely available. To silence this warning, set `CIBW_TEST_SKIP: "*-macosx_universal2:arm64"`.

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v3, actions/upload-artifact@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/