mailu/setup/flavors
Dimitri Huisman 120cd34989
Switch the container registry used for deploying images from docker
to ghcr.io (github). Images are now first build with '-build'
appended to the tag. E.g. ghcr.io/mailu/admin:master-build.
This is to prevent the image being available before automatic testing has completed.
In the deploy job, the final image is pushed (this still works the same).

Update setup & documentation for switch to ghcr.io
..
compose Switch the container registry used for deploying images from docker