[BUGFIX] Prevent replace of <link> tags in TypoScript setup

This patch prevent the wizard "Execute database migrations on single rows" 
to deletes the whole TypoScript setup from sys_template.

Resolves: #80680
Releases: master
Change-Id: I90162b4add42781445dfa2a12d1b6fcb2fb57c00
Reviewed-on: https://review.typo3.org/52366


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Jigal van Hemert <jigal.van.hemert@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/install/Classes/Updates/RowUpdater/RteLinkSyntaxUpdater.php

@@ -39,6 +39,7 @@ class RteLinkSyntaxUpdater implements RowUpdaterInterface
     protected $blackListedTables = [
         'sys_log',
         'sys_history',
+        'sys_template',
     ];
 
     /**