fix(obstacle_avoidance_planner): fix script typo

[takayuki5168]

Description

fix typo of script in obstacle_avoidance_planner

Tests performed

planning simulator

Effects on system behavior

No behavior change

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (5e5c4dd) 14.56% compared to head (6a91a7a) 14.56%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3688   +/-   ##
=======================================
  Coverage   14.56%   14.56%           
=======================================
  Files        1409     1409           
  Lines       99290    99290           
  Branches    29347    29347           
=======================================
  Hits        14458    14458           
  Misses      69247    69247           
  Partials    15585    15585           

Flag	Coverage Δ		*Carryforward flag
differential	40.69% <ø> (?)
total	14.56% <ø> (ø)		Carriedforward from 5e5c4dd

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