Mode 6 not supported

[gsalinas]

I've had a problem for a while where, when homing my motors, it spams the message "Mode 6 not supported" until homing completes. As far as I can tell this is because the homing mode is omitted from the switch case statement here:

ros2_canopen/canopen_ros2_control/src/cia402_system.cpp

Line 322 in a94a07d

RCLCPP_INFO(kLogger, "Mode %u not supported", mode);

I'm happy to open a PR to fix but I just wanted to make sure I'm not missing a reason why this behavior is correct before I do so.