chore(deps): update actions/download-artifact action to v5 (#3078)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release-please.yml

@@ -104,7 +104,7 @@ jobs:
           node-version: 24
           registry-url: 'https://registry.npmjs.org'
       - name: Download contents for publish
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: publish-cache-${{ github.run_number }}
       # Release Please has already incremented versions and published tags, so we just