try multiplatform builds

.github/workflows/docker.yml

@@ -7,7 +7,7 @@ on:
   release:
     types: [published]
   schedule:
-    - cron: '0 7 * * *'
+    - cron: "0 7 * * *"
 
 jobs:
   images:
@@ -33,9 +33,18 @@ jobs:
           echo DOCKER_TAG is not set!
           exit 1
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        id: buildx
+        with:
+          install: true
+
       - name: Login to Docker Hub
         uses: docker/login-action@v1.10.0
         with: