### Godot version

v4.0.3.stable.official [5222a99f5]

### System information

Windows 10

### Issue description

If a `CharacterBody3D`'s parent node is in a position other than the origin, the difference will be included in its `get_position_delta()` value, and therefore also `get_real_velocity()`. This is because [the implementation](https://github.com/godotengine/godot/blob/3710f069293f2fde8afe33fea898c4b36fa5e943/scene/3d/physics_body_3d.cpp#L1782-L1784) subtracts the current **local** transform from the old **global** transform. I don't know if behaviour in this case is defined at all, but I would expect it to be consistent with everything else in the `CharacterBody3D` context, such that if `velocity` is zero, `get_position_delta()` is also zero. The same applies to `CharacterBody2D`.

### Steps to reproduce

1. Create a `Node3D` with a `CharacterBody3D` in it
2. Move the `Node3D`
3. Call `move_and_slide()` in the `CharacterBody3D` and observe `get_position_delta()`

### Minimal reproduction project

[godot cb3d.zip](https://github.com/godotengine/godot/files/11861307/godot.cb3d.zip)

Object *obj = ObjectDB::get_instance(p_id);
	Node *node = Object::cast_to<Node>(obj);
	ERR_FAIL_NULL(node);
	ERR_FAIL_NULL(contact_monitor);
	HashMap<ObjectID, BodyState>::Iterator E = contact_monitor->body_map.find(p_id);
	ERR_FAIL_COND(!E);
	ERR_FAIL_COND(!E->value.in_tree);
	E->value.in_tree = false;
	contact_monitor->locked = true;
	emit_signal(SceneStringNames::get_singleton()->body_exited, node);
	for (int i = 0; i < E->value.shapes.size(); i++) {
		emit_signal(SceneStringNames::get_singleton()->body_shape_exited, E->value.rid, node, E->value.shapes[i].body_shape, E->value.shapes[i].local_shape);
	}
	contact_monitor->locked = false;
}
void RigidBody3D::_body_inout(int p_status, const RID &p_body, ObjectID p_instance, int p_body_shape, int p_local_shape) {