[CE] Retry the first login page validation
What does this MR do?
It can take longer that 60 seconds for the server to be ready to respond. Retry the login page validation twice (i.e., 3 attempts to validate the login page)
EE MR: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/13941
Closes https://gitlab.com/gitlab-org/quality/nightly/issues/103
Does this MR meet the acceptance criteria?
Conformity
Edited by Mark Lapierre