[DOCS] Use speaking array keys in changelog example

Resolves: #103192
Releases: main, 12.4
Change-Id: I81c0c655b75332790243c05be14f24593c5b9d6a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83098


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Oliver Bartsch <bo@cedev.de>

typo3/sysext/core/Documentation/Changelog/12.1/Feature-98373-ReactionIncomingWebHooksforTYPO3.rst

@@ -67,9 +67,9 @@ override file with:
             'sys_reaction',
             'table_name',
             [
-                'LLL:EXT:myext/Resources/Private/Language/locallang.xlf:my_table',
-                'my_table',
-                'myext-my_table-icon',
+                'label' => 'LLL:EXT:myext/Resources/Private/Language/locallang.xlf:my_table',
+                'value' => 'my_table',
+                'icon' => 'myext-my_table-icon',
             ]
         );
     }