#395 Replace waitForWindowUpdate with Thread.sleep()

As suggested in #404 (comment)

Signed-off-by: Stefan Niedermann <info@niedermann.it>
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

sample/src/androidTest/java/com/nextcloud/android/sso/sample/E2ETest.java

@@ -113,7 +113,7 @@ public void test_00_configureNextcloudAccount() throws UiObjectNotFoundException
     }
 
     @Test
-    public void test_01_importAccountIntoSampleApp() throws UiObjectNotFoundException {
+    public void test_01_importAccountIntoSampleApp() throws UiObjectNotFoundException, InterruptedException {
         Log.i(TAG, "Import account into sample app");
         launch(APP_SAMPLE);
 
@@ -131,7 +131,7 @@ public void test_01_importAccountIntoSampleApp() throws UiObjectNotFoundExceptio
         radioAccount.waitForExists(TIMEOUT);
         radioAccount.click();
 
-        mDevice.waitForWindowUpdate(null, TIMEOUT);
+        Thread.sleep(5_000);
 
         final var okButton = mDevice.findObject(new UiSelector()
                 .textContains("OK"));