Android: skip crashing tst_QPlainTextEdit::ensureCursorVisibleOnInitialShow

The test crashed for some reason, so other testcases are also not
executed. Skip the test for now to enable more tests in the CI

Task-number: QTBUG-89402
Pick-to: 6.3 6.2
Change-Id: I5ad38645d1b8f86c64da7208c0ae4f66d126c7d9
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>

tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp

@@ -1229,6 +1229,9 @@ void tst_QPlainTextEdit::canPaste()
 
 void tst_QPlainTextEdit::ensureCursorVisibleOnInitialShow()
 {
+#ifdef Q_OS_ANDROID
+    QSKIP("This test crashed on Android");
+#endif
     QString manyPagesOfPlainText;
     for (int i = 0; i < 800; ++i)
         manyPagesOfPlainText += QLatin1String("Blah blah blah blah blah blah\n");