[Dual Shade] Fix ShadeInteractorSceneContainerImplTest for Dual Shade on

This ensures these unit tests do not fail when Dual Shade is the default
shade experience in scene container.

Bug: 376411622
Test: Updated unit tests.
Flag: com.android.systemui.scene_container
Change-Id: I5cf53f3b1c294f5b97ea4afb02351c2cc1e17f28