### 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)

angular_limit_upper = Math::deg_to_rad(real_t(p_value));
		if (is_valid_slider) {
			PhysicsServer3D::get_singleton()->slider_joint_set_param(j, PhysicsServer3D::SLIDER_JOINT_ANGULAR_LIMIT_UPPER, angular_limit_upper);
		}
	} else if ("joint_constraints/angular_limit_lower" == p_name) {
		angular_limit_lower = Math::deg_to_rad(real_t(p_value));
		if (is_valid_slider) {
			PhysicsServer3D::get_singleton()->slider_joint_set_param(j, PhysicsServer3D::SLIDER_JOINT_ANGULAR_LIMIT_LOWER, angular_limit_lower);
		}
	} else if ("joint_constraints/angular_limit_softness" == p_name) {
		angular_limit_softness = p_value;
		if (is_valid_slider) {
			PhysicsServer3D::get_singleton()->slider_joint_set_param(j, PhysicsServer3D::SLIDER_JOINT_ANGULAR_LIMIT_SOFTNESS, angular_limit_softness);
		}
	} else if ("joint_constraints/angular_limit_restitution" == p_name) {
		angular_limit_restitution = p_value;
		if (is_valid_slider) {
			PhysicsServer3D::get_singleton()->slider_joint_set_param(j, PhysicsServer3D::SLIDER_JOINT_ANGULAR_LIMIT_SOFTNESS, angular_limit_softness);
		}
	} else if ("joint_constraints/angular_limit_damping" == p_name) {
		angular_limit_damping = p_value;
		if (is_valid_slider) {
			PhysicsServer3D::get_singleton()->slider_joint_set_param(j, PhysicsServer3D::SLIDER_JOINT_ANGULAR_LIMIT_DAMPING, angular_limit_damping);
		}
	} else {
		return false;
	}
	return true;
}
bool PhysicalBone3D::SliderJointData::_get(const StringName &p_name, Variant &r_ret) const {