Produce performance benchmark report after switching to Puma server

As a performance engineer

I want to capture performance baseline of the metrics specified in https://gitlab.com/gitlab-org/gitlab-ce/issues/61291 and configurations specified in https://gitlab.com/gitlab-org/gitlab-ce/issues/62876 after switching to Puma server

So that I can produce a side-by-side performance comparison between Unicorn baseline (https://gitlab.com/gitlab-org/gitlab-ce/issues/62877) and Puma web servers.

Acceptance criteria: Side-by-side tables of each configuration like below