image cleanup on repository #1484
Description
Description
If the user pushes repeatedly with the same tag unreferenced images from previous builds can be left in the registry. My workflow seems to leave behind unreferenced images on dockerhub every time it runs. This consumes excessive storage in the registry and is difficult to clean up manually. It would be highly desirable to not leave these unreferenced images in the registry, perhaps mediated by an additional action input.
