Bump pypa/cibuildwheel from 2.20.0 to 2.21.0

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.20.0 to 2.21.0.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](pypa/cibuildwheel@bd033a4...79b0dd3)

---
updated-dependencies:
- dependency-name: pypa/cibuildwheel
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release.yml

@@ -114,7 +114,7 @@ jobs:
           name: cibw-sdist
           path: dist
 
-      - uses: pypa/cibuildwheel@bd033a44476646b606efccdd5eed92d5ea1d77ad # v2.20.0
+      - uses: pypa/cibuildwheel@79b0dd328794e1180a7268444d46cdf12e1abd01 # v2.21.0
         with:
           only: ${{ matrix.only }}
           package-dir: dist/${{ needs.build_sdist.outputs.SDIST_NAME }}