feat(detected_object_validation): add test

[kminoda]

Description

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

Interface changes

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[codecov]

Codecov Report

Attention: Patch coverage is 96.07843% with 2 lines in your changes missing coverage. Please review.

Project coverage is 2.92%. Comparing base (507e3f4) to head (89ff59e).
Report is 86 commits behind head on main.

❗ Current head 89ff59e differs from pull request most recent head ea936d9

Please upload reports for the commit ea936d9 to get more accurate results.

Files	Patch %	Lines
...ct_position_filter/test_object_position_filter.cpp	96.07%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #7599       +/-   ##
==========================================
- Coverage   14.84%   2.92%   -11.93%     
==========================================
  Files        1999      85     -1914     
  Lines      139163    4170   -134993     
  Branches    43716     371    -43345     
==========================================
- Hits        20661     122    -20539     
+ Misses      95731    4030    -91701     
+ Partials    22771      18    -22753     

Flag	Coverage Δ
differential	2.92% <96.07%> (?)
total	?

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[kminoda]

@badai-nguyen Hi, would you review this PR?

[yukkysaito]

LGTM