[BUGFIX] Add missing (int) cast when creating preview uri

Resolves: #93065
Releases: master
Change-Id: Ia12c5e6fbec0441bc41508c6985b73347331157d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67102


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>