Fix linting

Author: ianthomas23

ipykernel/heartbeat.py

@@ -103,7 +103,7 @@ def run(self):
 
         while True:
             try:
-                zmq.device(zmq.QUEUE, self.socket, self.socket)
+                zmq.device(zmq.QUEUE, self.socket, self.socket)  # type:ignore[attr-defined]
             except zmq.ZMQError as e:
                 if e.errno == errno.EINTR:
                     # signal interrupt, resume heartbeat