Bump pypa/cibuildwheel from 2.20.0 to 2.21.1 in the actions group acr…

…oss 1 directory (#222)

* Bump pypa/cibuildwheel in the actions group across 1 directory

Bumps the actions group with 1 update in the / directory: [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel).


Updates `pypa/cibuildwheel` from 2.20.0 to 2.21.1
- [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...v2.21.1)

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

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

* sync `cibuildwheel` version

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alex Lancaster <[email protected]>

.github/workflows/build_wheels.yml

@@ -128,7 +128,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install cibuildwheel
         # Nb. keep cibuildwheel version pin consistent with job below
-        run: pipx install cibuildwheel==2.20.0
+        run: pipx install cibuildwheel==2.21.1
       - id: set-matrix
         run: |
           echo "CI_ONLY" $CI_ONLY
@@ -180,7 +180,7 @@ jobs:
         with:
           platforms: all          
       - name: Build and test wheels
-        uses: pypa/cibuildwheel@v2.20.0
+        uses: pypa/cibuildwheel@v2.21.1
         env:
           # FIXME: only run the slow tests when doing regular pushes, or manual - not for PRs
           CIBW_TEST_COMMAND: "pytest -v {package}/tests ${{ (github.event_name == 'push' || github.event_name == 'workflow_dispatch') && '--runslow' || '' }}"