[BUGFIX] Fix incorrect type annotation for GU::makeInstance

For variable arguments, the type annotation needs to match the
type of the single arguments, not an array of the single arguments.

Resolves: #100127
Releases: main, 11.5, 10.4
Change-Id: Ic107cff8e08c00b18ced783d61783ed182039fd3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78080


Reviewed-by: Thomas Hohn <tho@gyldendal.dk>
Tested-by: Thomas Hohn <tho@gyldendal.dk>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>