add required steps for multi platform docker buildx

Author: ronny

.github/workflows/pipeline.yml

@@ -72,6 +72,12 @@ jobs:
             type=semver,pattern={{major}}
             type=sha
 
+      - 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
         if: ${{ github.event_name != 'pull_request' }}
         uses: docker/login-action@v1