[DOCS] Add missing semicolon in rst file

Releases: master, 9.5
Resolves: #89676
Change-Id: Id215d40c18b28cf9b36a32b33c9a5e88d7840f5f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62322


Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Daniel Siepmann <coding@daniel-siepmann.de>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Daniel Siepmann <coding@daniel-siepmann.de>