[BUGFIX] Fix phpstan errors from TypesAssignedToPropertiesRule

* EXT:core

Resolves: #94122
Releases: master
Change-Id: I843e50719c5e5a2c3de425f49eae2f112e0df32f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69321


Tested-by: core-ci <typo3@b13.com>
Tested-by: Jochen <rothjochen@gmail.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>