build(deps): bump buildpacks/github-actions from 5.8.3 to 5.8.4

Bumps [buildpacks/github-actions](https://github.com/buildpacks/github-actions) from 5.8.3 to 5.8.4.
- [Release notes](https://github.com/buildpacks/github-actions/releases)
- [Commits](buildpacks/github-actions@v5.8.3...v5.8.4)

---
updated-dependencies:
- dependency-name: buildpacks/github-actions
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/delivery-docker.yml

@@ -61,7 +61,7 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
       - uses: docker/setup-qemu-action@v3
       - uses: docker/setup-buildx-action@v3
-      - uses: buildpacks/github-actions/[email protected].3
+      - uses: buildpacks/github-actions/[email protected].4
       - name: Buildx Build/Publish
         run: |
           docker buildx build . \