Only lint the first argument of expect_true() for expect_comparison_linter()

[MichaelChirico]

Closes #2083

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a716e1a) 98.64% compared to head (774605e) 98.64%.

❗ Current head 774605e differs from pull request most recent head 6ebdd67. Consider uploading reports for the commit 6ebdd67 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2408   +/-   ##
=======================================
  Coverage   98.64%   98.64%           
=======================================
  Files         126      126           
  Lines        5623     5623           
=======================================
  Hits         5547     5547           
  Misses         76       76           

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