Prepare 10.2.5 Omnibus Release
Since there are 4 MRs to pick, I am using a CE/EE style preparation MR.
Picked into https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/2160, will merge into `10-2-stable` ready for `10.2.5`
/unlabel ~"Pick into 10.2"
/cc @winh
Edited by Michael Kozono