fix(obstacle_avoidance_planner): suppress the osqp error about upper/lower bounds

[takayuki5168]

Description

The current Autoware sometimes shows ERROR in osqp_update_lower_bound: upper bound must be greater than or equal to lower bound a lot from the obstacle_avoidance_planner, mainly around reaching the goal.
I checked those values by printing them, but nothing was wrong.

When I added this PR's change, which looks unnecessary though, the error disappeared.

Tests performed

psim

Effects on system behavior

nothing

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[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (90d5b94) 15.30% compared to head (4d3f8ec) 15.30%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
...g/obstacle_avoidance_planner/src/mpt_optimizer.cpp	60.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5895   +/-   ##
=======================================
  Coverage   15.30%   15.30%           
=======================================
  Files        1747     1747           
  Lines      120119   120122    +3     
  Branches    36570    36571    +1     
=======================================
+ Hits        18380    18383    +3     
  Misses      81124    81124           
  Partials    20615    20615           

Flag	Coverage Δ		*Carryforward flag
differential	36.48% <60.00%> (?)
total	15.30% <ø> (-0.01%)	⬇️	Carriedforward from 8ff722b

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

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[takayuki5168]

#6011 will solve the issue.