Scheduler - Mark Drag-n-drop horizontal scroll test as unstable (#33170)

Author: aleksei-semikozov

e2e/testcafe-devextreme/tests/scheduler/common/dragAndDrop/basic.ts

@@ -39,7 +39,7 @@ test('Drag-n-drop in the "month" view', async (t) => {
   height: 834,
 }));
 
-test('Drag-n-drop when browser has horizontal scroll', async (t) => {
+test.meta({ unstable: true })('Drag-n-drop when browser has horizontal scroll', async (t) => {
   const scheduler = new Scheduler('#container');
   const draggableAppointment = scheduler.getAppointment('Staff Productivity Report');