### 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)

#ifdef TOOLS_ENABLED
	if (parent_skeleton) {
		Transform3D bone_transform(parent_skeleton->get_global_transform());
		if (-1 != bone_id) {
			bone_transform *= parent_skeleton->get_bone_global_pose(bone_id);
		}
		if (gizmo_move_joint) {
			bone_transform *= body_offset;
			set_joint_offset(bone_transform.affine_inverse() * get_global_transform());
		} else {
			set_body_offset(bone_transform.affine_inverse() * get_global_transform());
		}
	}
#endif
}
void PhysicalBone3D::_start_physics_simulation() {
	if (_internal_simulate_physics || !parent_skeleton) {
		return;
	}
	reset_to_rest_position();
	set_body_mode(PhysicsServer3D::BODY_MODE_RIGID);
	PhysicsServer3D::get_singleton()->body_set_collision_layer(get_rid(), get_collision_layer());
	PhysicsServer3D::get_singleton()->body_set_collision_mask(get_rid(), get_collision_mask());
	PhysicsServer3D::get_singleton()->body_set_collision_priority(get_rid(), get_collision_priority());
	PhysicsServer3D::get_singleton()->body_set_state_sync_callback(get_rid(), callable_mp(this, &PhysicalBone3D::_body_state_changed));
	set_as_top_level(true);
	_internal_simulate_physics = true;
}
void PhysicalBone3D::_stop_physics_simulation() {