### 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)

switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
			parent_skeleton = find_skeleton_parent(get_parent());
			update_bone_id();
			reset_to_rest_position();
			reset_physics_simulation_state();
			if (joint_data) {
				_reload_joint();
			}
			break;
		case NOTIFICATION_EXIT_TREE: {
			if (parent_skeleton) {
				if (-1 != bone_id) {
					parent_skeleton->unbind_physical_bone_from_bone(bone_id);
					bone_id = -1;
				}
			}
			parent_skeleton = nullptr;
			PhysicsServer3D::get_singleton()->joint_clear(joint);
		} break;
		case NOTIFICATION_TRANSFORM_CHANGED: {
			if (Engine::get_singleton()->is_editor_hint()) {
				update_offset();
			}
		} break;
	}
}
void PhysicalBone3D::_body_state_changed(PhysicsDirectBodyState3D *p_state) {