feat(behavior_path_planner): disable safety check

[purewater0901]

Description

Currently, the lane change module spends a lot of time to check if the generated candidate path is inside of the lanelets. Even though the generated path is usually in the designated lanelets, it unreasonably takes tons of time. In this PR, I made a flag and disable this safety check for the default setting.

🤖 Generated by Copilot at 9a27ae2

Added a temporary flag to skip a slow path check in utils.cpp. This is to improve the lane change performance of the behavior path planner.

Tests performed

Scenario Test 1324/1350
TIER4 Internal Link

Effects on system behavior

Not applicable.

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[codecov]

Codecov Report

Patch coverage: 11.45% and project coverage change: +0.87 🎉

Comparison is base (850775f) 13.82% compared to head (9a27ae2) 14.70%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3633      +/-   ##
==========================================
+ Coverage   13.82%   14.70%   +0.87%     
==========================================
  Files        1396     1298      -98     
  Lines       97973    92135    -5838     
  Branches    29110    29114       +4     
==========================================
+ Hits        13548    13550       +2     
+ Misses      69785    63934    -5851     
- Partials    14640    14651      +11     

Flag	Coverage Δ		*Carryforward flag
differential	12.83% <11.45%> (?)
total	14.71% <ø> (+0.88%)	⬆️	Carriedforward from 850775f

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...ateral_controller/src/qp_solver/qp_solver_osqp.cpp	44.44% <ø> (ø)
...lanner/scene_module/avoidance/avoidance_module.hpp	0.00% <ø> (ø)
..._planner/utils/avoidance/avoidance_module_data.hpp	0.00% <ø> (ø)
...clude/behavior_path_planner/utils/safety_check.hpp	0.00% <ø> (ø)
...or_path_planner/src/behavior_path_planner_node.cpp	19.62% <0.00%> (-0.25%)	⬇️
...er/src/scene_module/avoidance/avoidance_module.cpp	3.67% <0.00%> (-0.01%)	⬇️
...avior_path_planner/src/utils/lane_change/utils.cpp	0.81% <0.00%> (+<0.01%)	⬆️
...g/behavior_path_planner/src/utils/safety_check.cpp	0.00% <0.00%> (-5.36%)	⬇️
...ty_planner/src/scene_module/intersection/debug.cpp	0.00% <ø> (ø)
...y_smoother/src/smoother/jerk_filtered_smoother.cpp	49.06% <ø> (ø)
... and 7 more

... and 99 files with indirect coverage changes

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