Create backend-dependencies.yml

.github/workflows/backend-dependencies.yml

+name: backend-dependencies
+
+on:
+  push:
+    # Publish `dev` as Docker `latest` image.
+    branches:
+      - main
+    paths:
+      - 'backend/dependencies/**'
+
+jobs:
+  # Run tests.
+  # See also https://docs.docker.com/docker-hub/builds/automated-testing/
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run tests
+        run: echo "To-Do Add Running Tests"
+          
+  build:
+    # Ensure test job passes before pushing image.
+    needs: test
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+          
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: ./backend/dependencies
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: reallibrephotos/librephotos-dependencies:dev