[BUGFIX] Rename method in BrokenLinkRepositoryTest

to avoid conflict with a method from the testing framework.

Resolves: #90887
Releases: master
Change-Id: Ib55c69f67ceb32037f94183fe630e20391ad4481
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64009


Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>