Add ARM docker images. (#1051)

.github/workflows/release_publish_docker-image.yml

@@ -32,6 +32,9 @@ jobs:
           echo ::set-output name=version::${VERSION}
           echo ::set-output name=tags::${TAGS}
           echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+      - 
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
       - 
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
@@ -49,7 +52,7 @@ jobs:
           file: ./Dockerfile
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.prep.outputs.tags }}
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           labels: |
             org.opencontainers.image.source=${{ github.event.repository.html_url }}
             org.opencontainers.image.created=${{ steps.prep.outputs.created }}