[TASK] PHP 8 compatibility 1/x

Change-Id: Ib1e08417a716882e8c354da92d090efdb6924dc7
Resolves: #93632
Releases: master
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68160


Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Richard Haeser <richard@richardhaeser.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Richard Haeser <richard@richardhaeser.com>