dnd-kit-announcement stops updating when item is moved

When dragging a sortable item up or down in a vertical list, the live-region element:

**id="dnd-kit-announcement-4"**

stops updating its content.

Because of this, screen readers no longer announce position changes or drag state updates after some movements.

This creates an accessibility regression — the drag interaction becomes silent for assistive technology users.

https://main--5fc05e08a4a65d0021ae0bf2.chromatic.com/?path=/story/react-sortable-vertical-list--basic-setup