[Docker Runner] Allow access to device (--device docker option)

We want to create runners that can execute code on the GPUs off the server. Docker , it would be nice if this could be set in the config.toml file.

This is the command-line I would like to pass to docker:

--device /dev/nvidia1:/dev/nvidia1 --device /dev/nvidia0:/dev/nvidia0 --device /dev/nvidiactl:/dev/nvidiactl --device /dev/nvidia-uvm:/dev/nvidia-uvm

I config.toml something like:

  [runners.docker]
    image = "gitlabci"
    privileged = false
    devices = ["/dev/nvidia1:/dev/nvida1" "/dev/nvidia0:/dev/nvida0", "/dev/nvidiactl:/dev/nvidiactl", "/dev/nvidiactl:/dev/nvidiactl" ]
    volumes = ["/opt/tools:/opt/tools"]

If I missed this option, I apologize for the noise.