Introduce Opensearch metrics in hybrid architectures

Cristiano Casellarequested to merge
cc-inst290 into master

This MR enable https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/instrumentor/-/merge_requests/290 to introduce monitoring for opensearch capacity in Horse.

Improving https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/357

For reviewer

Here the resulting dashboard from this MR, tested in Horse Project

logging

Edited by Cristiano Casella

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