[TASK] Update to phpunit 4.3

Resolves: #63113
Releases: master, 6.2
Change-Id: Id23e7790411a95f002f7da97d84e2de0b376de7e
Reviewed-on: http://review.typo3.org/34415
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>