[TASK] Activate phpstan option reportUnmatchedIgnoredErrors

Releases: master
Resolves: #93955
Change-Id: Idb5e338c7a1e34f1197d38d01bec5f8735509e8f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68834


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Jochen <rothjochen@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>