nit

.github/workflows/ghcr-publish.yml

@@ -67,15 +67,17 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Push to GitHub Packages
-        uses: docker/build-push-action@v2
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
-          platforms: linux/amd64,linux/arm64
-          file: ./Dockerfile
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          platforms: linux/amd64,linux/arm64
 
       # Sign the resulting Docker image digest except on PRs.
       # This will only write to the public Rekor transparency log when the Docker