[TASK] Change copyright notice following Core change

Change-Id: Ic8dfe2afa9c18a878231f3b3314b01e9ef30d4f6
Release: 3.0
Resolves: #61020
Reviewed-on: http://review.typo3.org/32215
Reviewed-by: Fabien Udriot <fabien.udriot@ecodev.ch>
Tested-by: Fabien Udriot <fabien.udriot@ecodev.ch>