Draft: docs: update merge request approval rules documentation

Marc Shawrequested to merge
workloads/07c6ec6d67a into master

Relates to issue #537641

This MR was created by Duo in Session 1096810

Changes

  • Update documentation for merge request approval rules to reflect correct permission requirements
  • Clarify API, UI, and GraphQL behavior consistency for approval rule editing
  • Address security vulnerability fix documentation requirements

Merge request reports