`raw_scale_by` should not return an incorrect ball

[ThierryBerger]

• bevy_rapier/src/geometry/shape_views/collider_view.rs

  Lines 266 to 267 in a099dc6

  	log::error!("Failed to apply scale {} to Capsule shape.", scale);
  	SharedShape::ball(0.0)

A result would be better here.