Big Bang Bot: Update CODEOWNERS

| Action | User | Reason | | --------- | --------- | ----------- || Action | User | Reason | | --------- | --------- | ----------- | | Error | @ | Too few codeowners, minimum is: 3 |

This package is not currently tracked in the team charter mission team manifest. As such, only expired/unrecognized users have been removed. If you would like this package to sync with the manifest file, please refer to updating team charter manifest.