[BUGFIX] Use correct class for AsController attribute in docs

Resolves: #107127
Releases: 13.4, main
Change-Id: I00ee83dedc2f63ce31d5396bfed09230c68944f5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/90121
Reviewed-by: Oli Bartsch <bo@cedev.de>
Reviewed-by: Garvin Hicking <garvin@hick.ing>
Tested-by: Garvin Hicking <garvin@hick.ing>
Tested-by: Oli Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>

Author: ohader

typo3/sysext/core/Documentation/Changelog/13.0/Feature-102631-IntroduceAsControllerAttributeToAutoconfigureBackendControllers.rst

@@ -11,7 +11,7 @@ See :issue:`102631`
 Description
 ===========
 
-A new custom PHP attribute :php:`\TYPO3\CMS\Core\Attribute\AsController` has
+A new custom PHP attribute :php:`\TYPO3\CMS\Backend\Attribute\AsController` has
 been introduced in order to automatically tag backend controllers, making them
 available in the service container and enabling dependency injection.