[Improvement]: Deployments don't use external repository and rebuild images instead

Existing issue

• I have searched the existing issues and found no duplicate.

Current behavior

I build my app's images using github actions and push them to GHCR.

Then i trigger a webhook on OpenShip to redeploy the app.

But instead of using the ghcr image links as defined in the docker-compose file OpenShip rebuild the image on the server - which takes quite some resources.

Proposed improvement

OpenShip should use the images as defined in the docker-compose file and download them from the remote repository.

Benefits

Less stress on the machine openship is running on

Additional context

No response