use qemu to build multiarch docker images

.github/workflows/package.yml

@@ -327,22 +327,28 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - uses: actions/checkout@v4
-
+      - name: Checkout
+        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: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
+     
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
+          context: .
+          platforms: linux/amd64,linux/arm64,linux/386,linux/arm/v7
           push: true
           tags: |
             ghcr.io/${{ github.repository }}:latest
-            ghcr.io/${{ github.repository }}:${{ github.sha }}
+            ghcr.io/${{ github.repository }}:${{ github.sha }}