Top flaky test: tst_qwidget::dumpObjectTree

Test case: tst_qwidget::dumpObjectTree has failed 7 times and was flaky 3 times last week.

Coin log excerpt from failed run:
agent:2024/10/12 19:40:31 build.go:404: 572: FAIL! : tst_QWidget::dumpObjectTree() 'QTest::qWaitForWindowActive(&w)' returned FALSE. ()
agent:2024/10/12 19:40:31 build.go:404: 572: Loc: [/Users/qt/work/qt/qtbase/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp(9760)]
...

Full log at : coin log
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Information about the Qt test system: qt test execution information