CMake 3.21.0 + Ninja now pass absolute source file paths to the
compiler which causes __FILE__ to be absolute and qFindTestData
to ignore any QT_TESTCASE_BUILDDIR value.
This causes the test to fail, because it won't find test data in the
custom specified location.
Disable the test for now.
Amends 70464b355e
Pick-to: 6.2
Task-number: QTBUG-95268
Task-number: QTBUG-95018
Change-Id: If99035e897ac1d5f153d4e19c94e4355f88970af
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>