fix(autoware_behavior_path_planner_common): fix redundantContinue warning

[veqcc]

Description

This is a fix based on cppcheck redundantContinue warning

planning/behavior_path_planner/autoware_behavior_path_planner_common/src/utils/drivable_area_expansion/static_drivable_area.cpp:360:5: style: 'continue' is redundant since it is the last statement in a loop. [redundantContinue]
    continue;
    ^

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

Interface changes

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 13.11%. Comparing base (507e3f4) to head (3cfb8a3).
Report is 51 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7578      +/-   ##
==========================================
- Coverage   14.84%   13.11%   -1.74%     
==========================================
  Files        1999      524    -1475     
  Lines      139163    48730   -90433     
  Branches    43716    11792   -31924     
==========================================
- Hits        20661     6390   -14271     
+ Misses      95731    41393   -54338     
+ Partials    22771      947   -21824     

Flag	Coverage Δ
differential	13.11% <ø> (?)
total	?

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