Publish docker image on this registry

Docker is sunsetting the Free Team program, unfortunately we converted long time ago the tryton user into such organisation. We started the process to be on the Docker Sponsored Open Source program but the outcome is uncertain.
So I propose at backup solution to publish the images also on the registry of the project. I do not want to use tryton/tryton-docker registry because the CI use it to build intermediary images before testing and publication. Also it has a cleaning policy to keep only last 100 images.