Fix minitest detection spec

[TonyCTHsu]

What does this PR do?

Fix failing spec on MacOS and CircleCI, where steep is bundled.

steep depends on activesupport, which depends on minitest. So the test is activated on CI.

With no version constraint on the version, Minitest release 5.22.1 on Feb 6
https://github.com/minitest/minitest/blob/master/History.rdoc#label-5.22.1+-2F+2024-02-06

Our test suite failed with such change.

To fix it, add a dummy test case so the process status would be successful.

Note: This is something we should be working on continuing improving our environment.

[ivoanjo]

👍 Thanks for debugging this!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e449874) 98.26% compared to head (8fa1830) 98.26%.
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3445      +/-   ##
==========================================
- Coverage   98.26%   98.26%   -0.01%     
==========================================
  Files        1268     1268              
  Lines       74394    74397       +3     
  Branches     3481     3481              
==========================================
  Hits        73106    73106              
- Misses       1288     1291       +3     

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