ci: Remove invalid CODEOWNERS rules and reduce duplication
What does this MR do and why?
This reopens !118414 (merged) which was reverted by !118455 (merged).
This makes default TW approvals optional for doc file.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by Rémy Coutable