build(deps): bump sigstore/gh-action-sigstore-python from 2.1.0 to 2.1.1

Bumps [sigstore/gh-action-sigstore-python](https://github.com/sigstore/gh-action-sigstore-python) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/sigstore/gh-action-sigstore-python/releases)
- [Commits](sigstore/gh-action-sigstore-python@v2.1.0...v2.1.1)

---
updated-dependencies:
- dependency-name: sigstore/gh-action-sigstore-python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/release.yml

@@ -39,7 +39,7 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
 
     - name: sign
-      uses: sigstore/[email protected].0
+      uses: sigstore/[email protected].1
       with:
         inputs: ./dist/*.tar.gz ./dist/*.whl
         release-signing-artifacts: true