[ROS2][fix] Minor fix of marker publisher
This MR is a minor fix following the MR of obstacle extraction in the aggregation node. (MR) !428 (merged)
The fix is to publish marker array after adding all clusters.
This MR is a minor fix following the MR of obstacle extraction in the aggregation node. (MR) !428 (merged)
The fix is to publish marker array after adding all clusters.