Delay showing BouncerContents if faceAuth or activeUnlock can run

Bug: 411414026
Flag: com.android.systemui.scene_container
Test: atest BouncerContentTest
Test: atest BouncerInteractorTest
Test: manually enable scene container and enroll face auth,
observe bouncer delay (and no bouncer delay w/o face auth enrollment
or active unlock running)

Change-Id: Iee9d454493fb8a1c94ba5a9a68306bff9e21a21a