[DOCS] Fix rate limiting configuration example

Releases: main, 11.5
Resolves: #96943
Change-Id: I1934c621ab87ba46387860050124d8c55210a81c
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73540


Tested-by: core-ci <typo3@b13.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>