feat(static_centerline_optimizer): get behavior_velocity_planner's path interval from yaml

[takayuki5168]

Description

The behavior_velocity_planner's path interval was recently extracted from the hard code to the yaml file.
The static_centerline_optimizer package depends on the originally hard-coded parameter.

This PR makes the static_centerline_optimizer to load the parameter from the yaml file.

Tests performed

Unit test

Effects on system behavior

Nothing

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[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (6e550fc) 14.66% compared to head (39d7df6) 14.66%.

Files	Patch %	Lines
...optimizer/src/static_centerline_optimizer_node.cpp	0.00%	0 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6071      +/-   ##
==========================================
- Coverage   14.66%   14.66%   -0.01%     
==========================================
  Files        1858     1858              
  Lines      126603   126606       +3     
  Branches    37157    37160       +3     
==========================================
  Hits        18564    18564              
  Misses      87167    87167              
- Partials    20872    20875       +3     

Flag	Coverage Δ		*Carryforward flag
differential	22.65% <0.00%> (?)
total	14.66% <ø> (+<0.01%)	⬆️	Carriedforward from 6e550fc

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