refactor(lane_change): use a single function for isEndOfLane

[purewater0901]

Description

Currently, there are two similar functions to check whether the ego vehicle is near at the end of the lane. In this PR, I put them together and make a single function.

Tests performed

Scenario Test 1572/1588
TIER IV INTERNAL LINK

Effects on system behavior

Not applicable.

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[codecov]

Codecov Report

Patch coverage: 4.51% and project coverage change: +0.09 🎉

Comparison is base (fc5ec80) 15.06% compared to head (9433add) 15.16%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4338      +/-   ##
==========================================
+ Coverage   15.06%   15.16%   +0.09%     
==========================================
  Files        1508     1493      -15     
  Lines      103691   102915     -776     
  Branches    31653    31579      -74     
==========================================
- Hits        15625    15610      -15     
+ Misses      71059    70359     -700     
+ Partials    17007    16946      -61     

Flag	Coverage Δ		*Carryforward flag
differential	13.51% <4.51%> (?)
total	15.18% <ø> (+0.11%)	⬆️	Carriedforward from 3a60d8f

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

Impacted Files	Coverage Δ
...th_planner/scene_module/lane_change/base_class.hpp	15.90% <ø> (ø)
...r_path_planner/scene_module/lane_change/normal.hpp	0.00% <ø> (ø)
...nner/include/behavior_path_planner/utils/utils.hpp	45.45% <ø> (ø)
...planner/src/scene_module/lane_change/interface.cpp	6.38% <0.00%> (-0.09%)	⬇️
...th_planner/src/scene_module/lane_change/normal.cpp	4.55% <0.00%> (+<0.01%)	⬆️
...avior_path_planner/src/utils/lane_change/utils.cpp	0.42% <0.00%> (ø)
planning/behavior_path_planner/src/utils/utils.cpp	15.31% <2.58%> (-0.71%)	⬇️
...ehavior_path_planner/src/utils/avoidance/utils.cpp	6.58% <37.50%> (+0.44%)	⬆️
...er/src/scene_module/avoidance/avoidance_module.cpp	11.61% <50.00%> (+0.11%)	⬆️

... and 38 files with indirect coverage changes

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[mitsudome-r]

This PR was blocked by failing CI which is caused by the issue with GitHub runner. I have merged this branch after checking the build locally.