### 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)

} else if ("joint_constraints/relaxation" == p_name) {
		relaxation = p_value;
		if (is_valid_cone) {
			PhysicsServer3D::get_singleton()->cone_twist_joint_set_param(j, PhysicsServer3D::CONE_TWIST_JOINT_RELAXATION, relaxation);
		}
	} else {
		return false;
	}
	return true;
}
bool PhysicalBone3D::ConeJointData::_get(const StringName &p_name, Variant &r_ret) const {
	if (JointData::_get(p_name, r_ret)) {
		return true;
	}
	if ("joint_constraints/swing_span" == p_name) {
		r_ret = Math::rad_to_deg(swing_span);
	} else if ("joint_constraints/twist_span" == p_name) {
		r_ret = Math::rad_to_deg(twist_span);
	} else if ("joint_constraints/bias" == p_name) {
		r_ret = bias;
	} else if ("joint_constraints/softness" == p_name) {
		r_ret = softness;
	} else if ("joint_constraints/relaxation" == p_name) {
		r_ret = relaxation;
	} else {
		return false;
	}
	return true;
}
void PhysicalBone3D::ConeJointData::_get_property_list(List<PropertyInfo> *p_list) const {