FIX: Fix flakiness in MacOS GitHub runners

Author: nmacholl

tests/test_live_client.py

@@ -272,9 +272,10 @@ async def test_live_start(
         schema=Schema.MBO,
     )
 
-    live_client.start()
     assert live_client.is_connected() is True
 
+    live_client.start()
+
     message = await mock_live_server.get_message_of_type(
         gateway.SessionStart,
         timeout=1,
@@ -504,8 +505,6 @@ async def test_live_wait_for_close_timeout(
         start=None,
     )
 
-    live_client.start()
-
     await live_client.wait_for_close(timeout=0)
 
     live_client.terminate.assert_called_once()  # type: ignore