Fix issue where face auth doesn't run when bouncer is launched from secure camera

Bug: 357649556
Test: atest DeviceEntryFaceAuthRepositoryTest
Flag: com.android.systemui.scene_container
Test: manually
  1. Lock device
  2. Double press power button and launch secure camera activity
  3. Tap on photo gallery to trigger alternate/primary bouncer
  4. navigate to primary bouncer by swiping up on alternate bouncer
  5. face auth should run (previously this wouldn't happen)
Change-Id: Ic81a900aa1bf957aeefdf144e24d58281ba1c9af