Since we do not support Qt < 5.15 anymore, and as a first step
for getting rid of our special FindQt5.cmake.
Change-Id: Icc5dbaf9b0a3a622b1f609ff114b9decb6d2856c
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>