[TASK] Add more tests for GeneralUtility::isOnCurrentHost

There already was a data provider for the negative case of this
method, but no tests using this data provider.

Resolves: #101308
Releases: main, 12.4, 11.5
Change-Id: If32b5f2943240f224031e20d9849f849275358a5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79972


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>