Add Omnibus config for metrics e2e tests
We are looking to add end-to-end testing for GitLab application metrics. These can be served not just by Rails, but also dedicated servers that one has to enable first.
In this MR I am adding new OmnibusConfiguration
to make sure these servers are enabled prior to running the tests.
The MR that actually adds/runs these tests is here: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/87906
Part of https://gitlab.com/gitlab-org/gitlab/-/issues/356982
Edited by George Koltsov