build(deps): bump commitizen-tools/commitizen-action

Bumps [commitizen-tools/commitizen-action](https://github.com/commitizen-tools/commitizen-action) from 0.18.2 to 0.21.0.
- [Release notes](https://github.com/commitizen-tools/commitizen-action/releases)
- [Changelog](https://github.com/commitizen-tools/commitizen-action/blob/master/CHANGELOG.md)
- [Commits](commitizen-tools/commitizen-action@4498afe...1f11eb2)

---
updated-dependencies:
- dependency-name: commitizen-tools/commitizen-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/push.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Create bump and changelog
         id: cz
         if: github.repository == 'metis-science/pytopas'
-        uses: commitizen-tools/commitizen-action@4498afe6f2f1c5993fb29f22db7b597538c00aae
+        uses: commitizen-tools/commitizen-action@1f11eb222996406681d2bfa1eb3d997eca46557c
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           changelog_increment_filename: .CHANGELOG-CURRENT.md