Issue #11720: Kill surviving mutation in RequireThisCheck related to anonymous inner class

[Vyom-Yadav]

#11720
Hardcoded mutation tested at #11779

Reports with hardcoded mutation :

• DefaultConfig: https://checkstyle-diff-reports.s3.us-east-2.amazonaws.com/96fc21a_2022110234/reports/diff/index.html

This mutation falls in the category:

• Find a case that kills the mutation via diff report, add new test in existing PR

[romani]

Checkstyle violation https://dev.azure.com/romanivanovjr/romanivanovjr/_build/results?buildId=9840&view=logs&j=89cf5cab-37fd-5e09-60f8-9a1742bde19b&t=f89aed60-e6d5-5750-95ad-83cc60b84b61&l=1233

[pbludov]

Please fix violation

[ERROR] [checkstyle] [ERROR] src\test\resources\com\puppycrawl\tools\checkstyle\checks\coding\requirethis\InputRequireThisAnonymousInnerClass.java:0: All check input files in the 'src/(it|test)/resources*/' folder must                    have trailing comments "// ok" and/or "// violation". [StyleValidationCommentInInputs]

[nrmancuso]

@Vyom-Yadav please make CI happy.