Bump pypa/cibuildwheel from 2.20.0 to 2.21.3 (#137)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.20.0 to 2.21.3.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](pypa/cibuildwheel@v2.20.0...v2.21.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/deploy.yml

@@ -27,7 +27,7 @@ jobs:
         with:
           platforms: all
 
-      - uses: pypa/cibuildwheel@v2.20.0
+      - uses: pypa/cibuildwheel@v2.21.3
         env:
           CIBW_TEST_COMMAND: "python -VV && python -m unittest discover -f -s {project}/tests/test_unit/"
           CIBW_TEST_EXTRAS: "full"