[BUGFIX] Fix package-name for core in composer.json

After the change in #53753 package-names need to be
typo3/cms-* instead of typo3/cms/*

Change-Id: I83f9eb403a8222167891d0b055c546a567921c1c
Resolves: #56525
Reviewed-on: https://review.typo3.org/28028
Reviewed-by: Thomas Maroschik
Reviewed-by: Dietrich Heise
Tested-by: Dietrich Heise