Update configs for Puma 5.1.1

Necessary config updates for the Puma 5.1 update: gitlab-org/gitlab!48897 (merged)

⚠ Merge of these MRs needs to be coordinated:

• gitlab-org/gitlab!48897 (merged)
• gitlab-org/omnibus-gitlab!4803 (merged)
• !566 (merged)
• gitlab-org/gitlab-development-kit!1722 (merged)

Checklist

See Definition of done.

For anything in this list which will not be completed, please provide a reason in the MR discussion

Required

• Merge Request Title, and Description are up to date, accurate, and descriptive
• MR targeting the appropriate branch
• MR has a green pipeline on GitLab.com

Expected (please provide an explanation if not completing)

• Test plan indicating conditions for success has been posted and passes
  The application with gitlab-org/gitlab!48897 (merged) starts without any Puma issues. It is not trivial to check the setting itself.
• [-] Documentation created/updated
• [-] Integration tests added to GitLab QA
• [-] The impact any change in container size has should be evaluated