message: Update test_laser_assembler.launch
diff: <!-- Also use assemble_scans2 service in periodic_snapshotter, publish PointCloud2 and set duration to 1 second -->
  <!-- Arguments -->
  - <arg name="rtabmap_args" default="--delete_db_on_start --Rtabmap/DetectionRate 0 --RGBD/ProximityBySpace false --RGBD/LinearUpdate 0 --RGBD/AngularUpdate 0"/>
  + <arg name="rtabmap_args" default="--delete_db_on_start --Rtabmap/DetectionRate 0 --RGBD/ProximityBySpace false --RGBD/LinearUpdate 0 --RGBD/AngularUpdate 0 --RGBD/ProximityPathMaxNeighbors 0"/>
  <arg name="rgb_topic" default="/camera/rgb/image_rect_color" />
  <arg name="depth_topic" default="/camera/depth_registered/image_raw" />
  <arg name="camera_info_topic" default="/camera/rgb/camera_info" />
  