Fix potential audio delay during source cleanup

discord/player.py

@@ -694,8 +694,8 @@ class AudioPlayer(threading.Thread):
             self._current_error = exc
             self.stop()
         finally:
-            self.source.cleanup()
             self._call_after()
+            self.source.cleanup()
 
     def _call_after(self) -> None:
         error = self._current_error