[TASK] Use new way to register add wizard

Resolves: #56432
Releases: 6.2
Change-Id: Id78b3182ed6710a09a82ce69bd1f5b72f9e2a3e0
Reviewed-on: https://review.typo3.org/27939
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters