[TASK] Fix typo in code example

Releases: master
Resolves: #91158
Change-Id: I71de97b4b62985e0630d2475523a96d4d7f206ba
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64294


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>