message: Fix the memory leak in an error occurs.
diff: @@ -487,6 +487,7 @@ static void http2_client_onReceive(swClient *cli, char *buf, uint32_t _length)
  hcc->iowait = 0;
  if (stream->type == SW_HTTP2_STREAM_NORMAL)
  {
  + Z_ADDREF_P(zresponse); // dtor in del
  swHashMap_del_int(hcc->streams, stream_id);
  }
  else if (stream->buffer)
  @@ -518,6 +519,10 @@ static void http2_client_stream_free(void *ptr)
  swString_free(stream->gzip_buffer);
  }
  #endif
  + if (stream->response_object)
  + {
  + sw_zval_ptr_dtor(&stream->response_object);
  + }
  efree(stream);
  }
  