fix(start_planner): fix path update

[kosuke55]

Description

The update cycle is observed only at the beginning due to !last_pull_out_start_update_time_ .
fix this issue and use update cycle not only for backward driving

Related links

Tests performed

psim

https://evaluation.tier4.jp/evaluation/reports/57953752-50c7-5dd6-a095-f55eaa7719cd?project_id=prd_jt

Notes for reviewers

Interface changes

none

Effects on system behavior

none

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[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (b498c53) 15.93% compared to head (46bf7a8) 15.94%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4931   +/-   ##
=======================================
  Coverage   15.93%   15.94%           
=======================================
  Files        1580     1580           
  Lines      108931   108932    +1     
  Branches    33612    33613    +1     
=======================================
+ Hits        17357    17365    +8     
+ Misses      72958    72951    -7     
  Partials    18616    18616           

Flag	Coverage Δ		*Carryforward flag
differential	17.64% <100.00%> (?)
total	15.93% <ø> (+<0.01%)	⬆️	Carriedforward from b498c53

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

Files Changed	Coverage Δ
...cene_module/start_planner/start_planner_module.cpp	36.89% <100.00%> (+0.79%)	⬆️

... and 3 files with indirect coverage changes

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