Work around another ResourceWarning in unit tests

Python 3.11+ changed the warning for an unclosed transport when the
event loop is closed.

tests/test_client.py

@@ -941,7 +941,8 @@ def callback(reader, writer):
         server.close()
         await server.wait_closed()
 
-    @pytest.mark.filterwarnings("ignore:unclosed transport")
+    @pytest.mark.filterwarnings("ignore:unclosed transport:ResourceWarning")
+    @pytest.mark.filterwarnings("ignore:loop is closed:ResourceWarning")
     def test(self) -> None:
         loop = async_solipsism.EventLoop()
         with pytest.warns(ResourceWarning, match="unclosed Client"):