Describe the bug

The gh list run -R <owner>/<repo> --status=pending is not supported. It is by the corresponding API query (gh api /repos/<owner>/<repo>/actions/runs?status=pending, though. Shouldn't this status filtering also be available in the gh list run command?

Steps to reproduce the behavior

1. Type gh list run -R <owner>/<repo> --status=pending
2. Command fails with 'invalid argument "pending" for "-s, --status" flag: valid values are {queued|completed|in_progress|requested|waiting|action_required|cancelled|failure|neutral|skipped|stale|startup_failure|success|timed_out}'

Expected vs actual behavior

Expected that the command should be able to list only workflows in the 'Pending' status (in addition to the other statuses).