Build both amd64 and arm64 docker images

.github/workflows/dockerhub.yml

@@ -13,6 +13,12 @@ jobs:
  - name: Check out the repo
  uses: actions/checkout@v4
 
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v3
+
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v3
+
  - name: Extract metadata (tags, labels) for Docker
  id: meta
  uses: docker/metadata-action@v5
@@ -29,6 +35,7 @@ jobs:
  uses: docker/build-push-action@v5
  with:
  context: ./docker
+ platforms: linux/amd64,linux/arm64
  push: true
  tags: maswag/monaa:latest
  labels: ${{ steps.meta.outputs.labels }}