fix(start_planner): start prepare blinker when autonomous mode is available

[soblin]

Description

Start the timeout count for temporal stop for blinker preparation when AW is engaged and approved.

Related links

#6412

Tests performed

if the prepare time is 3.0, even if the module is auto mode, waits for 3sec before start

RT0-30644-2024-02-21_18.03.13.mp4

By default the parameter is 0 and has no effect.

RT0-30644-2024-02-21_18.05.07.mp4

Notes for reviewers

Interface changes

none

Effects on system behavior

none

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[kosuke55]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 15.10%. Comparing base (82cc35a) to head (e0e29e4).
Report is 17 commits behind head on main.

Files	Patch %	Lines
..._start_planner_module/src/start_planner_module.cpp	0.00%	5 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6470   +/-   ##
=======================================
  Coverage   15.10%   15.10%           
=======================================
  Files        1823     1823           
  Lines      126312   126312           
  Branches    38200    38200           
=======================================
  Hits        19075    19075           
  Misses      85841    85841           
  Partials    21396    21396           

Flag	Coverage Δ		*Carryforward flag
differential	0.00% <0.00%> (?)
total	15.10% <ø> (+<0.01%)	⬆️	Carriedforward from 82cc35a

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

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