message: Fix tiny memory leak of Server\Port
diff: @@ -230,7 +230,7 @@ static void server_free_object(zend_object *object) {
  }
  for (auto zport : property->ports) {
  php_swoole_server_port_deref(Z_OBJ_P(zport));
  - sw_zval_free(zport);
  + efree(zport);
  }
  server_object->serv = nullptr;
  }
  @@ -1038,7 +1038,6 @@ static zval *php_swoole_server_add_port(ServerObject *server_object, swListenPor
  zval *zserv = (zval *) serv->ptr2;
  zval *zports = sw_zend_read_and_convert_property_array(Z_OBJCE_P(zserv), zserv, ZEND_STRL("ports"), 0);
  (void) add_next_index_zval(zports, zport);
  - Z_ADDREF_P(zport);
  } while (0);
  /* iterator */
  