fix(deps): update dependency checkstyle to v10.21.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
checkstyle (source)	10.21.3 -> 10.21.4

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Warning

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Release Notes

checkstyle/checkstyle (checkstyle)

v10.21.4

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.88%. Comparing base (16f3637) to head (5be149a).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #7166   +/-   ##
=========================================
  Coverage     89.88%   89.88%           
  Complexity     6631     6631           
=========================================
  Files           740      740           
  Lines         20033    20033           
  Branches       1968     1968           
=========================================
  Hits          18006    18006           
  Misses         1438     1438           
  Partials        589      589           

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