Force Add-On update (re-pull the image)

I implemented my first add-on with an own repository. In the repository I have four add-ons, each for a deferent stage level (DEBUG, DEV, RC, REL). For the debug and development stage I don’t build the docker container with a version tag. I always use ‘dev’ or ‘debug’. So if I build a new dev container, the URL of the container and the version will not change.

With this approach I have a problem, I don’t know how to force an update of a newly build dev container.
When I build the container as a normal docker container I use portainer and just click “re-create” and set the flag “re-pull” image.
How can I force an update of my add-on if I only push a new version to ghcr?

Deinstallation and a new install, won’t work. I will get the old docker image. So I assume, there is a cache for add-ons.