fix(obstacle_velocity_limiter): more stable virtual wall

[maxime-clem]

Description

Fix the obstacle_velocity_limiter adding virtual walls at each slowdown point. Now a wall is added only the first slowdown of an interval.
Also moved the check to prevent increasing the trajectory velocity to the node side.

Related links

Parent Issue:

• Link

How was this PR tested?

Psim

Notes for reviewers

None.

Interface changes

None.

Effects on system behavior

None.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 3.44828% with 28 lines in your changes missing coverage. Please review.

Project coverage is 24.09%. Comparing base (bda8706) to head (6bf1caa).
Report is 4 commits behind head on main.

Files	Patch %	Lines
...ty_limiter_module/src/trajectory_preprocessing.cpp	0.00%	11 Missing ⚠️
...y_limiter_module/src/obstacle_velocity_limiter.cpp	0.00%	10 Missing ⚠️
...autoware_motion_velocity_planner_node/src/node.cpp	0.00%	4 Missing ⚠️
...er_module/src/obstacle_velocity_limiter_module.cpp	0.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8499      +/-   ##
==========================================
- Coverage   24.10%   24.09%   -0.01%     
==========================================
  Files        1399     1403       +4     
  Lines      102337   102375      +38     
  Branches    38870    38874       +4     
==========================================
+ Hits        24668    24669       +1     
- Misses      75141    75177      +36     
- Partials     2528     2529       +1     

Flag	Coverage Δ		*Carryforward flag
differential	18.54% <3.44%> (?)
total	24.10% <ø> (+<0.01%)	⬆️	Carriedforward from bda8706

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

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