support arm64

Signed-off-by: Li Chaoran <pkwarcraft@gmail.com>

.github/workflows/docker-build-push.yml

@@ -9,6 +9,14 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+      -
+        # Add support for more platforms with QEMU (optional)
+        # https://github.com/docker/setup-qemu-action
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Login to Docker Hub
         uses: docker/login-action@v1
         with:
@@ -19,5 +27,6 @@ jobs:
         with:
           context: .
           file: Dockerfile
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ secrets.DOCKER_USERNAME }}/freegpt-webui:latest