Build only amd64 for now?

Author: sourcefrog

.github/workflows/container.yml

@@ -38,7 +38,7 @@ jobs:
         with:
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64 # TODO: ,linux/arm64 via cross and multi-arch build?
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
         env: