example_14 is failing in CI

[christophfroehlich]

https://github.com/ros-controls/ros2_control_demos/actions/runs/13531598088/job/37814833103?pr=720

logs_34883812448.zip

    [ros2_control_node-1] [INFO] [1740520498.873565731] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.873585088] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.874649177] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.874663947] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.875753193] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.875781678] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.876838002] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.876861097] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.877918774] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.877946487] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [ros2_control_node-1] [INFO] [1740520498.879000698] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint1]: Data not yet received from socket.
Error: ROR] [ros2_control_node-1]: process[ros2_control_node-1] failed to terminate '10.0' seconds after receiving 'SIGTERM', escalating to 'SIGKILL'
    [ros2_control_node-1] [INFO] [1740520498.879039222] [controller_manager.resource_manager.hardware_component.sensor.RRBotModularPositionSensorJoint2]: Data not yet received from socket.
    [INFO] [ros2_control_node-1]: sending signal 'SIGKILL' to process[ros2_control_node-1]
Error: ROR] [ros2_control_node-1]: process has died [pid 25451, exit code -9, cmd '/home/runner/work/ros2_control_demos/ros2_control_demos/.work/upstream_ws/install/controller_manager/lib/controller_manager/ros2_control_node --ros-args --params-file /home/runner/work/ros2_control_demos/ros2_control_demos/.work/target_ws/install/ros2_control_demo_example_14/share/ros2_control_demo_example_14/config/rrbot_modular_actuators_without_feedback_sensors_for_position_feedback.yaml'].

Reactivate the post_shutdown_test() if fixed