pylint: Fix deprecated-method for threading
    
    As of Python3 `currentThread`, `thread.getName` are aliases for
    `threading.current_thread()` and `threading.Thread.name`
    respectively.
    
    In Python3.10:
    > bpo-43723: The following threading methods are now deprecated and
      should be replaced:
      currentThread => threading.current_thread()
      activeCount => threading.active_count()
      Condition.notifyAll => threading.Condition.notify_all()
      Event.isSet => threading.Event.is_set()
      Thread.setName => threading.Thread.name
      thread.getName => threading.Thread.name
      Thread.isDaemon => threading.Thread.daemon
      Thread.setDaemon => threading.Thread.daemon
    
    Fixes: https://pagure.io/freeipa/issue/9117
    Signed-off-by: Stanislav Levin <slev@altlinux.org>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>