[BUGFIX] Ensure Extbase translation tests fulfill expectations

Ensure the test is executed as expected.

Resolves: #85082
Releases: master, 8.7
Change-Id: Ia0dfbdc12eeefbb28996f69dade4298b1464afa6
Reviewed-on: https://review.typo3.org/57050


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>