Bump pypa/cibuildwheel from 2.20.0 to 2.21.2

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.20.0 to 2.21.2.
- [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...v2.21.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build_wheels.yml

@@ -19,7 +19,7 @@ jobs:
 
       # cibuildwheel is configured via pyproject.toml
       - name: cibuildwheel
-        uses: pypa/cibuildwheel@v2.20.0
+        uses: pypa/cibuildwheel@v2.21.2
         env:
           # Otherwise PyTorch builds may fail on MacOS: https://cibuildwheel.readthedocs.io/en/stable/cpp_standards/#macos-and-deployment-target-versions
           CIBW_ENVIRONMENT: CI_COMMIT_TAG="${{  github.ref_name }}" MACOSX_DEPLOYMENT_TARGET="10.14"