Bump the github-actions group with 3 updates

Bumps the github-actions group with 3 updates: [actions/setup-python](https://github.com/actions/setup-python), [actions/download-artifact](https://github.com/actions/download-artifact) and [sigstore/gh-action-sigstore-python](https://github.com/sigstore/gh-action-sigstore-python).


Updates `actions/setup-python` from 4 to 5
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v4...v5)

Updates `actions/download-artifact` from 3 to 4
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

Updates `sigstore/gh-action-sigstore-python` from 1.2.3 to 2.1.1
- [Release notes](https://github.com/sigstore/gh-action-sigstore-python/releases)
- [Commits](sigstore/gh-action-sigstore-python@v1.2.3...v2.1.1)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: sigstore/gh-action-sigstore-python
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
 
@@ -73,12 +73,12 @@ jobs:
       id-token: write
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: python-package-distributions
           path: dist/
 
-      - uses: sigstore/gh-action-sigstore-python@v1.2.3
+      - uses: sigstore/gh-action-sigstore-python@v2.1.1
         with:
           inputs: ./dist/*.tar.gz ./dist/*.whl