Merge pull request #637 from AIOSAI/dev

security(ci): least-privilege token on e2e-wheel workflow + W24 changelog (also carries playbook commit 6b89fcd)

.github/workflows/publish.yml

@@ -41,12 +41,24 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write
+      id-token: write # keyless Sigstore signing (OIDC); no signing key exists
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: dist
           path: dist/
+      - name: Sign artifacts with Sigstore (keyless, OIDC)
+        # Produces dist/<artifact>.sigstore.json bundles next to each wheel/sdist.
+        # The 'gh release create dist/*' step below then attaches them to the
+        # GitHub Release, which is where Scorecard's Signed-Releases check looks.
+        # release-signing-artifacts is disabled: the action's own auto-attach only
+        # fires on a 'release: published' event, but we trigger on 'push: tags',
+        # so we upload the bundles ourselves via the dist/* glob.
+        uses: sigstore/gh-action-sigstore-python@04cffa1d795717b140764e8b640de88853c92acc # v3.3.0
+        with:
+          inputs: ./dist/*.tar.gz ./dist/*.whl
+          release-signing-artifacts: false
       - name: Extract latest CHANGELOG section
         run: |
           # Grab the topmost "## [...]" block from CHANGELOG.md as release notes.