fix(pointpainting): recovery default parameter (#6460)

Signed-off-by: Kotaro Yoshimoto <pythagora.yoshimoto@gmail.com>

Author: Shin-kyoto

perception/image_projection_based_fusion/config/pointpainting.param.yaml

@@ -26,7 +26,7 @@
       iou_nms_target_class_names: ["CAR"]
       iou_nms_search_distance_2d: 10.0
       iou_nms_threshold: 0.1
-      score_threshold: 0.4
+      score_threshold: 0.35
     omp_params:
       # omp params
       num_threads: 1