Ref T10939. Packages are valid reviewers, so let Herald "Add Reviewers" and "Add Blocking Reviewers" actions add them.
- Maniphest Tasks
- T10939: Support for OWNERS files
- rP92b9fa47d00d: Allow Herald to add package reviewers
- Wrote a rule to add package reviewers.
- Hit the rule, saw a package reviewer added, viewed transcript.