[BUGFIX] Fix wrong codeblock type in rst files

Resolves: #80403
Releases: master
Change-Id: I95e6e029723ba43d2af0690e835d447b1d6756ef
Reviewed-on: https://review.typo3.org/52234


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Tested-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>