Decommission `ops-gitlab-net` ES cluster
The ops-gitlab-net cluster is the only one which is still on 6.x . 6.x is EOL so we should upgrade it to 7.x
Search indexing on ops.gitlab.net is not used. We've disabled the feature and can safely reomve the ops-gitlab-net
deployment from our Elastic Cloud account.
Edited by AnthonySandoval