[DOCS] Streamline references to manuals in LTS versions

Links from LTS versions to other manuals should reference
the same version.

Resolves: #102036
Releases: 12.4, 11.5
Change-Id: I67ead0fd46756f754e889e5836632ed035a2727a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81330


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>