Revert accidental changes

Author: vladvildanov

redis/_parsers/resp3.py

@@ -17,7 +17,7 @@ def __init__(self, socket_read_size):
         self.pubsub_push_handler_func = self.handle_pubsub_push_response
         self.invalidation_push_handler_func = None
 
-    async def handle_pubsub_push_response(self, response):
+    def handle_pubsub_push_response(self, response):
         logger = getLogger("push_response")
         logger.info("Push response: " + str(response))
         return response