Invalidate pipeline on state change

When SensitiveNotificationProtectionController state changes, invalidate
notification pipeline. This is done via SensitiveContentCoordinator due
to its usage of that state in onBeforeRenderList

Bug: 327024492
Test: atest SensitiveContentCoordinatorTest
Flag: ACONFIG com.android.server.notification.screenshare_notification_hiding DISABLED
Change-Id: I083f7a1e85849ea9811cd90eada79e5388beaceb