increase test_recv_timeout delay

Author: dhalbert

Diff for: tests/test_recv_timeout.py

@@ -46,7 +46,7 @@ def test_recv_timeout_vs_keepalive(self) -> None:
                     mqtt_client.ping()
 
                 now = time.monotonic()
-                assert recv_timeout <= (now - start) <= (keep_alive + 0.2)
+                assert recv_timeout <= (now - start) <= (keep_alive + 0.5)
 
 
 if __name__ == "__main__":