Fix Python 3.11 deprecation warning (#941)

Author: jboulmier

src/socketio/asyncio_manager.py

@@ -26,8 +26,9 @@ async def emit(self, event, data, namespace, room=None, skip_sid=None,
                     id = self._generate_ack_id(sid, callback)
                 else:
                     id = None
-                tasks.append(self.server._emit_internal(eio_sid, event, data,
-                                                        namespace, id))
+                tasks.append(asyncio.create_task(
+                    self.server._emit_internal(eio_sid, event, data,
+                                               namespace, id)))
         if tasks == []:  # pragma: no cover
             return
         await asyncio.wait(tasks)