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@v2.20.0...v2.21.0)

---
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/ci.yml

@@ -187,7 +187,7 @@ jobs:
         run: ./scripts/download_unpack_roms.sh
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.20.0
+        uses: pypa/cibuildwheel@v2.21.0
         env:
           CIBW_ARCHS: "${{ matrix.arch }}"
 

.github/workflows/pypi.yml

@@ -68,7 +68,7 @@ jobs:
       run: ./scripts/download_unpack_roms.sh
 
     - name: Build wheels
-      uses: pypa/cibuildwheel@v2.20.0
+      uses: pypa/cibuildwheel@v2.21.0
       env:
         CIBW_ARCHS: "${{ matrix.arch }}"