chore(deps): bump the github_actions group across 1 directory with 2 updates (#302)

Bumps the github_actions group with 2 updates in the / directory: [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/download-artifact` from 4 to 5
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

Updates `sigstore/gh-action-sigstore-python` from 3.0.0 to 3.0.1
- [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@v3.0.0...v3.0.1)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github_actions
- dependency-name: sigstore/gh-action-sigstore-python
  dependency-version: 3.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github_actions
...

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

Author: dependabot[bot]

.github/workflows/release-please.yml

@@ -48,7 +48,7 @@ jobs:
       id-token: write # IMPORTANT: mandatory for trusted publishing
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: python-package-distributions
         path: dist/
@@ -68,12 +68,12 @@ jobs:
       id-token: write # IMPORTANT: mandatory for sigstore
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: python-package-distributions
         path: dist/
     - name: Sign the dists with Sigstore
-      uses: sigstore/[email protected].0
+      uses: sigstore/[email protected].1
       with:
         inputs: >-
           ./dist/*.tar.gz