Update collision check margins in start planner configuration

Signed-off-by: kyoichi-sugahara <kyoichi.sugahara@tier4.jp>

Author: kyoichi-sugahara

autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/start_planner/start_planner.param.yaml

@@ -6,7 +6,7 @@
       th_stopped_velocity: 0.01
       th_stopped_time: 1.0
       collision_check_margins: [2.0, 1.0, 0.5, 0.1]
-      collision_check_distance_from_end: -10.0
+      back_objects_collision_check_margin: 3.0
       collision_check_margin_from_front_object: 5.0
       th_moving_object_velocity: 1.0
       th_distance_to_middle_of_the_road: 0.5