Revert "Merge branch 'gitlab-🤖-codeowners' into 'master'"

What does this MR do and why?

The MR !126503 (merged) caused gitlab-bot to be the only reviwer for some domains such as ~"group::authentication and authorization". This MR reverts the change as it is blocking some MRs from being merged.

See https://gitlab.slack.com/archives/CJHPLRTRD/p1695173349008159 for details.

Revert "Merge branch 'gitlab-🤖-codeowners' into 'master'"

This reverts merge request !126503 (merged)

Affects Danger reviewer roulette...

as well as required approvals

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.