tst_SignalSpy::testCount fails in CI on macOS

void tst_SignalSpy::testCount()
{
    const QUrl urls[] = {
        testFileUrl("signalspy.qml"),
        testFileUrl("signalspy2.qml"),
    };
    for (const auto &url : urls) {
        QQuickView window;
        window.resize(200, 200);
        window.setSource(url);
        window.show();
        QVERIFY(QTest::qWaitForWindowActive(&window)); // <-----
        QVERIFY(window.rootObject() != nullptr);