Wait up to 5 mins for GitLab to start
Increases the time we wait for GitLab to be available. This should resolve the failures in ee:image
(assuming it's just taking a little longer to restart - if the jobs still fail that would suggest GitLab is sometimes failing to restart successfully).
Also always perform readiness check when starting GitLab. It used to do that but was unintentionally disabled.
Edited by George Koltsov