Improved CODEOWNERS Validation
## Problem to Solve Setting up CODEOWNERS in large organizations can be complicated with different groups and users being added to different sections and paths. Ensuring the file is configured properly and working as expected can sometimes only be confirmed through trial and error testing. ## Proposal We should improve the current validation of CODEOWNERS files to support: - Ensuring users have appropriate access to the project - Ensuring groups have appropriate access to the project
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