Increase timeout and add some debug info to tst_dialog

Task-number: QTBUG-72113
Change-Id: I9b2dfb360a18995cae9e0e4a98443e796c3d8ad0
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

tests/auto/quick/dialogs/WebView.qml

@@ -59,6 +59,8 @@ Window {
         onLoadingChanged: function(reqeust) {
             if (reqeust.status === WebEngineView.LoadSucceededStatus) {
                 handler.ready = true
+            } else {
+                console.log("Wooohooo loading page from qrc failed !")
             }
         }
 

tests/auto/quick/dialogs/tst_dialogs.cpp

@@ -117,7 +117,7 @@ void tst_Dialogs::colorDialogRequested()
 void tst_Dialogs::contextMenuRequested()
 {
     m_listner->load(QUrl("qrc:/index.html"));
-    QTRY_VERIFY(m_listner->ready());
+    QTRY_COMPARE_WITH_TIMEOUT(m_listner->ready(), true, 20000);
     QSignalSpy dialogSpy(m_listner, &TestHandler::requestChanged);
     QTest::mouseClick(m_widnow, Qt::RightButton);
     QTRY_COMPARE(dialogSpy.count(), 1);