Convert `gitlab-com` from using `init-values.yaml.gotmpl` to using variable files from deployer
In issue #2505 we make release tools start populating the tags of the containers to use directly as a file in the gitlab-com
repo. Once we confirm it's working correctly, we wish to switch the gitlab-com
repo over to actually consuming those files for the container versions, removing the current logic in init-values.yaml.gotmpl
entirely.
Edited by Graeme Gillies