feat(autoware_behavior_path_planner_common): disable feature of turning off blinker at low velocity

[kyoichi-sugahara]

Description

When ego vehicle stops in the lane with turn_direction right or left, blinker turns off because of the following implementation.

  const auto requires_turn_signal = [&](const auto & lane_attribute) {
    constexpr double stop_velocity_threshold = 0.1;
    return (
      lane_attribute == "right" || lane_attribute == "left" ||
      (lane_attribute == "straight" && current_vel < stop_velocity_threshold));
  };

The expected behavior for the scene is the keep turning on when the ego vehicle is on the lane with turn_direction is right or left.

So changed so that keep turning on blinker in this PR.

Related links

Parent Issue:

• TIERIV INTERNAL TICKET LINK

How was this PR tested?

• tested with psim
• passed TIERIV INTERNAL SCENARIOS

Notes for reviewers

None.

Effects on system behavior

None.

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[codecov]

Codecov Report

Attention: Patch coverage is 41.66667% with 7 lines in your changes missing coverage. Please review.

Project coverage is 26.15%. Comparing base (6e2cffb) to head (aa28802).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...or_path_planner_common/src/turn_signal_decider.cpp	41.66%	4 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9005      +/-   ##
==========================================
- Coverage   26.16%   26.15%   -0.02%     
==========================================
  Files        1298     1304       +6     
  Lines       96978    97029      +51     
  Branches    39185    39192       +7     
==========================================
+ Hits        25377    25380       +3     
- Misses      68979    69025      +46     
- Partials     2622     2624       +2     

Flag	Coverage Δ		*Carryforward flag
differential	15.45% <41.66%> (?)
total	26.16% <ø> (-0.01%)	⬇️	Carriedforward from 308d837

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[satoshi-ota]

LGTM