[Iron] Move deprecation warning message "class_type" into separate logger

[firesurfer]

Description

When we call ros2 service call /controller_manager/list_hardware_components controller_manager_msgs/srv/ListHardwareComponents in iron the controller manager prints 6 times:

[ros2_control_node-19] [WARN] [1728976987.424427528] [controller_manager]: The 'class_type' field in 'controller_manager_msgs/msg/HardwareComponentState.msg' is deprecated and will be removed soon. Please switch over client code to use 'plugin_name' instead.

As I have parts in the system that automatically call this service once in a while it really spams the log.

Action

Please move the warning in a sublogger: for example controller_manager.deprecation that can be silenced separately.

It should then be possible to silence the specific logger via command line / launch argument:

From the docs:

ros2 run logging_demo logging_demo_main --ros-args --log-level logger_usage_demo:=debug

[saikishor]

@firesurfer feel free to open a PR with your suggestion and let the maintainers review it