add buildx stage

Author: Yanni8

.github/workflows/docker-deploy.yml

@@ -14,14 +14,12 @@ jobs:
         platforms: 'arm64,arm'
     - name: Setup Buildx
       uses: docker/setup-buildx-action@v2
-    - name: Login to DockerHub
+    - name: Login to DockerRegistry
       uses: docker/login-action@v2
       with:
         registry: ghcr.io
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build and push
-      uses: docker/build-push-action@v3
-      with:
-        push: true
-        tags: ghcr.io/bbzblit/m293-project/m293-project:latest
+      run: |
+        docker buildx build --platform linux/amd64,linux/arm64 -t ghcr.io/bbzblit/m293-project/app:latest --push .