build(deps): bump sigstore/gh-action-sigstore-python from 1.2.3 to 2.0.0

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] <[email protected]>

.github/workflows/kit.yml

@@ -266,7 +266,7 @@ jobs:
           name: dist
 
       - name: "Sign artifacts"
-        uses: sigstore/gh-action-sigstore-python@v1.2.3
+        uses: sigstore/gh-action-sigstore-python@v2.0.0
         with:
           inputs: coverage-*.*