Added more waits to avoid flaky tests

Author: nhudinh0309

tests/Umbraco.Tests.AcceptanceTest/tests/DefaultConfig/Users/Permissions/UserGroup/DefaultPermissionsInContent.spec.ts

@@ -162,6 +162,7 @@ test('can empty recycle bin with delete permission enabled', {tag: '@release'},
 
   // Act
   await umbracoUi.content.clickRecycleBinButton();
+  await umbracoUi.waitForTimeout(700);
   await umbracoUi.content.clickEmptyRecycleBinButton();
   await umbracoUi.content.clickConfirmEmptyRecycleBinButton();