Window animations change the physical geometry in relation to the
geometry known in Qt. Windows may not be found by
QGuiApplication::topLevelAt() as expected.
Turn animations off in Linux provisioning.
(linked to 9cd01ef8570f2a2c7392ac33f94005efc327c3fb)
Task-number: QTBUG-130811
Task-number: QTQAINFRA-6739
Change-Id: I75b2320cde36fe418dfc2d518db74e50072b6204
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>