Add support for arm64

Author: AmRo045

.github/workflows/release.yml

@@ -29,20 +29,25 @@ jobs:
       - name: Checkout code
         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: Log in to DockerHub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Build and Push Docker Image
+      - name: Build and Push Multi-Platform Docker Image
         run: |
           VERSION=${{ github.ref_name }}
-          # Remove leading 'v' if it exists
-          VERSION=${VERSION#v}
-          
-          docker build -t amro045/outline-admin:$VERSION .
-          docker push amro045/outline-admin:$VERSION
-
-          docker tag amro045/outline-admin:$VERSION amro045/outline-admin:latest
-          docker push amro045/outline-admin:latest
+          VERSION=${VERSION#v} # Remove leading 'v' if it exists
+
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --tag amro045/outline-admin:$VERSION \
+            --tag amro045/outline-admin:latest \
+            --push .