Describe the bug
The open_loop mode of the steering controllers library is not working.

To Reproduce
Steps to reproduce the behavior:

1. Checkout the CarLike demo [Example 11] Carlike Robot using Bicycle Steering Controller ros2_control_demos#316
2. Set the open_loop parameter to true
3. Check the results, the robot is not moving.

Expected behavior
Ideal odometry

Environment (please complete the following information):

• Version : Rolling

Additional context
I think the issue is that the variables here are never set