Publish images to a subpath of the project name
We are getting 401 unauthorized responses when trying to publish images. No clear proof, but I suspect it could be a limit to the names we are allowed to publish to. Try publishing to a sub-path of the repo name instead of a newer top level name.
This isn't intended to be the full fix, merely an experiment to see if this is our problem and will be reverted if it doesn't help.
Change-Id: If3e840b61d31032302cc9c144cb17f6f4144f9cb