Update Inspector when changing AudioEffectChorus voice_count
Update Inspector when changing AudioEffectChorus voice_count

Fixes #31627.

(cherry picked from commit 65975b9a08b9cb648ce8dd4c74b0e658709ac8b1)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot