Bump sigstore/gh-action-sigstore-python from 1.2.3 to 2.0.0 (#869)

Bumps [sigstore/gh-action-sigstore-python](https://github.com/sigstore/gh-action-sigstore-python) from 1.2.3 to 2.0.0.
- [Release notes](https://github.com/sigstore/gh-action-sigstore-python/releases)
- [Commits](sigstore/gh-action-sigstore-python@v1.2.3...v2.0.0)

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

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

.github/workflows/ci-cd.yml

@@ -237,7 +237,7 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
 
     - name: Sign the dists with Sigstore
-      uses: sigstore/gh-action-sigstore-python@v1.2.3
+      uses: sigstore/gh-action-sigstore-python@v2.0.0
       with:
         inputs: >-
           ./dist/*.tar.gz