Bump pypa/cibuildwheel from 2.5.0 to 2.6.1 (#6777)

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.5.0 to 2.6.1.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](pypa/cibuildwheel@2.5.0...2.6.1)

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

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -307,7 +307,7 @@ jobs:
       run: |
         make cythonize
     - name: Build wheels
-      uses: pypa/cibuildwheel@2.5.0
+      uses: pypa/cibuildwheel@2.6.1
       env:
         CIBW_ARCHS_MACOS: x86_64 arm64 universal2
     - uses: actions/upload-artifact@v2