Fix leak in Physics2DServerSW

servers/physics_2d/physics_2d_server_wrap_mt.cpp

@@ -139,6 +139,7 @@ void Physics2DServerWrapMT::finish() {
 	segment_shape_free_cached_ids();
 	circle_shape_free_cached_ids();
 	rectangle_shape_free_cached_ids();
+	capsule_shape_free_cached_ids();
 	convex_polygon_shape_free_cached_ids();
 	concave_polygon_shape_free_cached_ids();