fix(planning): reduce longitudinal velocity delta time

Signed-off-by: Muhammad Zulfaqar Azmi <zulfaqar.azmi@tier4.jp>

Author: zulfaqar-azmi-t4

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

@@ -32,28 +32,28 @@
         allow_loose_check_for_cancel: true
         execution:
           expected_front_deceleration: -1.0
-          expected_rear_deceleration: -1.0
+          expected_rear_deceleration: -1.5
           rear_vehicle_reaction_time: 1.5
           rear_vehicle_safety_time_margin: 1.0
-          lateral_distance_max_threshold: 2.0
+          lateral_distance_max_threshold: 1.5
           longitudinal_distance_min_threshold: 3.0
-          longitudinal_velocity_delta_time: 0.8
+          longitudinal_velocity_delta_time: 0.5
         cancel:
           expected_front_deceleration: -1.0
           expected_rear_deceleration: -2.0
           rear_vehicle_reaction_time: 1.0
           rear_vehicle_safety_time_margin: 0.8
           lateral_distance_max_threshold: 1.0
           longitudinal_distance_min_threshold: 2.5
-          longitudinal_velocity_delta_time: 0.6
+          longitudinal_velocity_delta_time: 0.4
         stuck:
           expected_front_deceleration: -1.0
           expected_rear_deceleration: -1.0
           rear_vehicle_reaction_time: 2.0
           rear_vehicle_safety_time_margin: 1.0
           lateral_distance_max_threshold: 2.0
           longitudinal_distance_min_threshold: 3.0
-          longitudinal_velocity_delta_time: 0.8
+          longitudinal_velocity_delta_time: 0.4
 
         # lane expansion for object filtering
         lane_expansion: