owners.yaml: Add Restricted entry
We have noticed that some engineers that should not have the ability to block an MR for review, are actually blocking merge requests.
The ACK/NACK webhook needs to identify these engineers. This can be done by marking the engineers as "restricted".
Add a "Restricted" entry to owners.yaml for engineers that are restricted from blocking Merge Requests.
Signed-off-by: Prarit Bhargava prarit@redhat.com