Missing steps in Dockerfile for installing ros-dependencies

[nahsimai]

• Fixes missing steps for installing ros-dependencies.

If there are some corrections/improvements to be made, I will be happy to help further.

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This change is 

[BastOOn58]

Since June 20th, 2023 the ROS Foxy Fitzroy distribution as reached its end-of-life (see here). As the ROS bridge works with this distribution, you must add the following argument to the rosdep update command to avoid any problem.

rosdep update --rosdistro=$ROS_DISTRO

[nahsimai]

Since June 20th, 2023 the ROS Foxy Fitzroy distribution as reached its end-of-life (see here). As the ROS bridge works with this distribution, you must add the following argument to the rosdep update command to avoid any problem.

rosdep update --rosdistro=$ROS_DISTRO

Thanks for your comment @BastOOn58. I have made the relevant changes to the Dockerfile as suggested by you.