Includes should be ordered from most specific to most general. This
means that project-specific includes always come before Qt includes.
This example didn't follow that guideline. Fix.
Amends 88e8094f18e6581f2b652eb3d82f514ecf687046.
Task-number: QTBUG-108857
Change-Id: Iafdae9dd8e70ff99882c4344a023a21d15fa3c54
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
(cherry picked from commit ac6e8b3b21c2ae25e7a4fe483b604ea6ddecd3ff)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>