message: tools: use correct docker image version
diff: #!/usr/bin/env sh
  +dockerimage=mavsdk/mavsdk-ubuntu-20.04-px4-sitl-v1.11
  +
  if command -v podman &> /dev/null
  then
  - podman run -it --rm -v $(pwd):/home/user/MAVSDK:z mavsdk/mavsdk-ubuntu-20.04-px4-sitl-v1.11 "$@"
  + podman run -it --rm -v $(pwd):/home/user/MAVSDK:z $dockerimage "$@"
  echo "sudo needed to repair file ownership after podman ran: sudo chown -R $USER:$USER ."
  sudo chown -R $USER:$USER .
  elif command -v docker &> /dev/null
  then
  - docker run -it --rm -v $(pwd):/home/user/MAVSDK:z -e LOCAL_USER_ID=`id -u` mavsdk/mavsdk-ubuntu-18.04-px4-sitl "$@"
  + docker run -it --rm -v $(pwd):/home/user/MAVSDK:z -e LOCAL_USER_ID=`id -u` $dockerimage "$@"
  else
  echo "docker or podman commands not found"
  