Update build-container.yml to set up QEMU and Docker Buildx

.github/workflows/build-container.yml

@@ -15,8 +15,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
@@ -31,4 +36,5 @@ jobs:
           context: .
           file: ./Dockerfile
           push: true
-          tags: ghcr.io/${{ github.repository }}/nodered-ffmpeg:3.1.9
+          tags: ghcr.io/${{ github.repository }}/nodered-ffmpeg:3.1.9
+          platforms: linux/amd64, linux/arm/v6, linux/arm/v7, linux/arm64