tst_qmessagelogger::qMessagePattern(backtrace) is flaky on OpenSUSE 15.4

6507: ********* Start testing of tst_qmessagehandler *********
 FAIL!  : tst_qmessagehandler::qMessagePattern(backtrace) 'output.contains(e)' returned FALSE. (Got: "[T::T|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] static constructor\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qDebug\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qInfo\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qWarning\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qCritical\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qDebug with category\n[main|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] qDebug2\n[MyClass::myFunction|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] from_a_function 34\n[T::~T|?libQt6Core.so.6?|?libQt6Core.so.6?|qFormatLogMessage|?libQt6Core.so.6?] static destructor\n" ;  Expected: "[MyClass::myFunction|MyClass::mySlot1|?qlogging_helper?|" )
    Loc: [/home/qt/work/qt/qtbase/tests/auto/corelib/global/qlogging/tst_qlogging.cpp(792)]
 FAIL!  : tst_qmessagehandler::qMessagePattern(backtrace depth,separator) 'output.contains(e)' returned FALSE. (Got: "[T::T\n?libQt6Core.so.6?] static constructor\n[main\n?libQt6Core.so.6?] qDebug\n[main\n?libQt6Core.so.6?] qInfo\n[main\n?libQt6Core.so.6?] qWarning\n[main\n?libQt6Core.so.6?] qCritical\n[main\n?libQt6Core.so.6?] qDebug with category\n[main\n?libQt6Core.so.6?] qDebug2\n[MyClass::myFunction\n?libQt6Core.so.6?] from_a_function 34\n[T::~T\n?libQt6Core.so.6?] static destructor\n" ;  Expected: "[MyClass::myFunction\nMyClass::mySlot1] from_a_function 34" )
    Loc: [/home/qt/work/qt/qtbase/tests/auto/corelib/global/qlogging/tst_qlogging.cpp(792)]
 PASS   : tst_qmessagehandler::setMessagePattern()
 PASS   : tst_qmessagehandler::formatLogMessage(basic)
 Totals: 167 passed, 2 failed, 0 skipped, 0 blacklisted, 322ms