[DOCS] Correct examples in redirect event examples

Resolves: #100212
Related: #99834
Releases: main
Change-Id: I95c051ee295bf762f632d7a30c65a083f5aab46d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78159


Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Lina Wolf <112@linawolf.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Lina Wolf <112@linawolf.de>
Tested-by: Georg Ringer <georg.ringer@gmail.com>