Assignee

- do: assignee
  max:
    count: 2 # There should not be more than 2 assignees
    message: 'test string' # this is optional
  min:
    count: 2 # min number of assignees
    message: 'test string' # this is optional

Supported Events:

'pull_request.*', 'pull_request_review.*', 'issues.*'