AssistiveSupport.nodeFocusChanged is not called after SendScreenChanged or SendLayoutChanged

Steps to reproduce:

1. Open a project that uses the Accessibility module (such as Unity-Technologies/a11y-public-sample)
2. Call AssistiveSupport.notificationDispatcher.SendScreenChanged or AssistiveSupport.notificationDispatcher.SendLayoutChanged with a valid AccessibilityNode to focus right after resetting the AssistiveSupport.activeHierarchy (for example, when changing scenes)
3. Subscribe to AssistiveSupport.nodeFocusChanged
4. Build & run on an Android device
5. Observe the result of the aforementioned call

Actual results: The screen reader announces the node passed in the call, but does not draw its focus indicator around it; AssistiveSupport.nodeFocusChanged is not called for the newly focused node.

Expected results: The screen reader announces the node passed in the call and draws its focus indicator around it; AssistiveSupport.nodeFocusChanged is called for the newly focused node.

Reproducible with versions: Unity 6000.2.0a9

Tested on (OS): Android 14