also ignore set eventloops policy

Author: Carreau

pytest_jupyter/jupyter_server.py

@@ -250,6 +250,11 @@ def jp_serverapp(jp_server_config, jp_argv, jp_configurable_serverapp):
             message=".*get_event_loop_policy.*",
             category=DeprecationWarning,
         )
+        warnings.filterwarnings(
+            "ignore",
+            message=".*set_event_loop_policy.*",
+            category=DeprecationWarning,
+        )
 
         return jp_configurable_serverapp(config=jp_server_config, argv=jp_argv)