Remove armv6 support

.github/workflows/container.yml

@@ -48,7 +48,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          platforms: linux/amd64, linux/386, linux/arm64, linux/arm/v6, linux/arm/v7
+          platforms: linux/amd64, linux/386, linux/arm64, linux/arm/v7
           cache-from: type=local,src=/tmp/buildx-cache
           cache-to: type=local,dest=/tmp/buildx-cache-new,mode=max
           push: ${{ github.event_name != 'pull_request' }}