Notify the host when the insets animation running state is changed

This helps the UI toolkit control the frame rate while there is any
insets animation running.

Bug: 300019131
Test: Add local logs to see if notifyInsetsAnimationRunningStateChanged
      is called as expected while playing insets animations.
Change-Id: I01bbacf8379ed165791b797a3e247dd7ac6e5901