message: fix bug of double free when timeout.
diff: @@ -261,6 +261,8 @@ static void http_client_coro_onTimeout(php_context *ctx)
  //define time out RETURN ERROR 110
  zend_update_property_long(swoole_http_client_coro_class_entry_ptr, zobject, ZEND_STRL("errCode"), 110 TSRMLS_CC);
  + http_client *http = swoole_get_object(zobject);
  + http->cli->released = 1;
  http_client_free(zobject TSRMLS_CC);
  swoole_set_object(zobject, NULL);
  