feat(motion_velocity_smoother): improve velocity planning around stop point

[purewater0901]

Description

Remove unnecessary constant values in the jerk-filtered optimization method.

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[codecov]

Codecov Report

Base: 11.52% // Head: 11.52% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (269742d) compared to base (b28d792).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2955   +/-   ##
=======================================
  Coverage   11.52%   11.52%           
=======================================
  Files        1314     1314           
  Lines       92794    92793    -1     
  Branches    24997    24998    +1     
=======================================
  Hits        10699    10699           
+ Misses      70853    70852    -1     
  Partials    11242    11242           

Flag	Coverage Δ		*Carryforward flag
differential	3.34% <0.00%> (?)
total	11.53% <ø> (+<0.01%)	⬆️	Carriedforward from 78bb154

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

Impacted Files	Coverage Δ
...y_smoother/src/smoother/jerk_filtered_smoother.cpp	0.00% <0.00%> (ø)

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[TakaHoribe]

A little doubt about just removing this value. This PR allows using an infinite jerk when the reference velocity is zero.

For example, in the case where v_ref[1]>0 and v_ref[2]=0, following the current constraints,

j_min[2] < (a[2] - a[1]) * v_ref[2] < j_max[2]

it is allowed for a[1] and a[2] to be defined without jerk constraint.