[TASK] Add missing unique link to recently added rst file

Resolves: #99407
Related: #98122
Releases: main, 11.5
Change-Id: Ie5a8e894e65669e9faa3d30f908040006a0345d7
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77215


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>

typo3/sysext/core/Documentation/Changelog/11.5.x/Important-98122-FixFeloginVariableNameInTypoScriptSetup.rst

 .. include:: /Includes.rst.txt
 
-===================================================================
+.. _important-98122-1671636081:
+
+=================================================================
 Important: #98122 - Fix felogin variable name in TypoScript setup
-===================================================================
+=================================================================
 
 See :issue:`98122`