Testconfig: Force Qt3D#dev to succeed

The wip branch is now being merged to dev and most of the codebase
is changing. CI is now treating it as a new submodule.

Task-number: QTQAINFRA-912
Change-Id: If25a30448a4433becb06421ee111eb03dbe4da8f
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>