wlr_scene: Use wlr_damage_ring_rotate_buffer

Based on: !4331 (merged)

Improves scene output semantics.

wlr_scene_output_build_state() was a little bit leaky: Compositors needed to worry about rotating the damage ring on its behalf.

breaking because compositors who use _build_state() should not rotate the damage ring anymore or they will get visual artifacts.

/cc @vyivel