chore(goal_planner): suppress error message

[kosuke55]

Description

suppress error message
chaged error -> debug

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

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[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (64799b6) 14.38% compared to head (3b0c77f) 14.38%.
Report is 6 commits behind head on main.

Files	Patch %	Lines
...th_goal_planner_module/src/goal_planner_module.cpp	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6293   +/-   ##
=======================================
  Coverage   14.38%   14.38%           
=======================================
  Files        1907     1907           
  Lines      129929   129929           
  Branches    37613    37613           
=======================================
  Hits        18695    18695           
  Misses      90224    90224           
  Partials    21010    21010           

Flag	Coverage Δ		*Carryforward flag
differential	0.00% <0.00%> (?)
total	14.38% <ø> (+<0.01%)	⬆️	Carriedforward from 64799b6

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

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[kyoichi-sugahara]

LGTM