Bump sigstore/gh-action-sigstore-python from 2.1.1 to 3.0.0

Bumps [sigstore/gh-action-sigstore-python](https://github.com/sigstore/gh-action-sigstore-python) from 2.1.1 to 3.0.0.
- [Release notes](https://github.com/sigstore/gh-action-sigstore-python/releases)
- [Changelog](https://github.com/sigstore/gh-action-sigstore-python/blob/main/CHANGELOG.md)
- [Commits](sigstore/gh-action-sigstore-python@61f6a50...f514d46)

---
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>

Author: dependabot[bot]

.github/workflows/pypi.yaml

@@ -109,7 +109,7 @@ jobs:
                   path: dist
 
             - name: "Sigstore sign package"
-              uses: sigstore/gh-action-sigstore-python@61f6a500bbfdd9a2a339cf033e5421951fbc1cd2 # v2.1.1
+              uses: sigstore/gh-action-sigstore-python@f514d46b907ebcd5bedc05145c03b69c1edd8b46 # v3.0.0
               with:
                   inputs: |
                       ./dist/*.tar.gz