Add commented out option to docker/build-push-action

There is currently a potential incompatibility with the default
behavior of the version of buildx being used. A default image generated
is built with provenance, which is something we would like to have, but
these default images can run on neither Google Cloud Run nor AWS
Lambda. Please see docker/buildx#1533 for mroe information. Since we
want to retain support for creating AWS Lambda images we add a
commented out disabling of this functionality that can be enabled in a
downstream repository if needed.

.github/workflows/build.yml

@@ -313,6 +313,11 @@ jobs:
           context: .
           file: ./Dockerfile
           outputs: type=docker,dest=dist/image.tar
+          # Uncomment the following option if you are building an image for use
+          # on Google Cloud Run or AWS Lambda. The current default image output
+          # is unable to run on either. Please see the following issue for more
+          # information: https://github.com/docker/buildx/issues/1533
+          # provenance: false
           tags: ${{ env.IMAGE_NAME }}:latest  # not to be pushed
           # For a list of pre-defined annotation keys and value types see:
           # https://github.com/opencontainers/image-spec/blob/master/annotations.md
@@ -461,6 +466,11 @@ jobs:
           context: .
           file: ./Dockerfile-x
           platforms: ${{ env.PLATFORMS }}
+          # Uncomment the following option if you are building an image for use
+          # on Google Cloud Run or AWS Lambda. The current default image output
+          # is unable to run on either. Please see the following issue for more
+          # information: https://github.com/docker/buildx/issues/1533
+          # provenance: false
           push: true
           tags: ${{ needs.prepare.outputs.tags }}
           # For a list of pre-defined annotation keys and value types see: