fix(tier4_perception_launch): enable low_intensity_filter as default (autowarefoundation#7390)

Signed-off-by: badai-nguyen <dai.nguyen@tier4.jp>

Author: badai-nguyen

launch/tier4_perception_launch/launch/perception.launch.xml

@@ -77,7 +77,7 @@
   <arg name="use_low_height_cropbox" default="true" description="use low height crop filter in clustering"/>
   <arg name="use_object_filter" default="true" description="use object filter"/>
   <arg name="use_roi_based_cluster" default="true" description="use roi_based_cluster in clustering"/>
-  <arg name="use_low_intensity_cluster_filter" default="false" description="use low_intensity_cluster_filter in clustering"/>
+  <arg name="use_low_intensity_cluster_filter" default="true" description="use low_intensity_cluster_filter in clustering"/>
   <arg name="use_image_segmentation_based_filter" default="false" description="use image_segmentation_based_filter in clustering"/>
   <arg
     name="use_empty_dynamic_object_publisher"