multi platform docker build

Author: rapnuss

.github/workflows/dockerhub-publish.yml

@@ -16,6 +16,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Set up QEMU (multi-arch emulation)
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -45,7 +50,7 @@ jobs:
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           cache-from: type=gha
           cache-to: type=gha,mode=max