[TASK] Explicitly declare property in ConfirmationFinisher

Releases: master
Resolves: #90382
Change-Id: I26fe0116e48c64362c2b124e9daeec73182cccc2
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63258


Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>

typo3/sysext/form/Classes/Domain/Finishers/ConfirmationFinisher.php

@@ -66,6 +66,11 @@ class ConfirmationFinisher extends AbstractFinisher
      */
     protected $configurationManager;
 
+    /**
+     * @var ContentObjectRenderer
+     */
+    protected $contentObjectRenderer;
+
     /**
      * @param \TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface $configurationManager
      */