[CLEANUP] Use correct casting syntax

Resolves: #62664
Releases: master
Change-Id: Ib8e0695fc234ab67a2f73a65737e07cf9a2d19c6
Reviewed-on: http://review.typo3.org/33757
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>