fix(lidar_apollo_instance_segmentation): fix critical bug (#8444)

Signed-off-by: kminoda <koji.minoda@tier4.jp>
Co-authored-by: Shintaro Tomie <58775300+Shin-kyoto@users.noreply.github.com>

perception/autoware_lidar_apollo_instance_segmentation/src/detector.cpp

@@ -136,7 +136,7 @@ bool LidarApolloInstanceSegmentation::detectDynamicObjects(
   pcl::PointCloud<pcl::PointXYZI>::Ptr pcl_pointcloud_raw_ptr(new pcl::PointCloud<pcl::PointXYZI>);
   // pcl::fromROSMsg(transformed_cloud, *pcl_pointcloud_raw_ptr);
 
-  auto pcl_pointcloud_raw = *pcl_pointcloud_raw_ptr;
+  auto & pcl_pointcloud_raw = *pcl_pointcloud_raw_ptr;
   pcl_pointcloud_raw.width = transformed_cloud.width;
   pcl_pointcloud_raw.height = transformed_cloud.height;
   pcl_pointcloud_raw.is_dense = transformed_cloud.is_dense == 1;