micro_ros_udp_freertos Demo not working

## Issue template

- Hardware description: Renesas: EK-RA6M5
- RTOS: FreeRTOS
- Installation type: micro-ROS, Renesas MicroRos Components
- Version or commit hash:Humble

#### Steps to reproduce the issue
Follow the exact readme in the repo : https://github.com/micro-ROS/micro_ros_renesas_demos/tree/iron
#### Expected behavior

When running the `docker run -it --rm -v /dev:/dev -v /dev/shm:/dev/shm --privileged --net=host microros/micro-ros-agent:$ROS_DISTRO udp4 --port 8888 -v6` Command, we should be able to get the ros topic published from the micro controller

#### Actual behavior
No response after running micro ros agent. Also, No ROS topics or nodes listed.
Pinging to the board takes too much of time. but even after that no sign of the micro ROS node running on the MCU.
#### Additional information
Tried with different versions of ROS2, NO luck

Start by following the README in the Iron demo repository and reproduce the `micro-ros-agent` UDP command on the Renesas EK-RA6M5 with FreeRTOS. Check whether the board responds over the network and whether any ROS topics or nodes appear; done means the expected micro-ROS topic is visible from the agent.

Written by the indexing model from the issue text.