[TASK] Use new way to register colorpicker wizard

Resolves: #56436
Releases: 6.2
Change-Id: Ia789abbbdf7ab11a4ab13ea6aa195bc79ba6dc25
Reviewed-on: https://review.typo3.org/27945
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel