add ubuntu key update for docker building

docker/Dockerfile

@@ -1,5 +1,7 @@
 FROM ros:noetic-ros-base
 
+RUN sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F42ED6FBAB17C654
+
 RUN sudo apt-get update && sudo apt-get install -y vim iputils-ping net-tools python3-pip ros-noetic-robot-state-publisher ros-noetic-moveit ros-noetic-rosbridge-suite ros-noetic-joy ros-noetic-ros-control ros-noetic-ros-controllers ros-noetic-tf* ros-noetic-gazebo-ros-pkgs ros-noetic-joint-state-publisher ros-noetic-soem ros-noetic-ros-canopen dos2unix git
 
 RUN sudo -H pip3 --no-cache-dir install rospkg numpy jsonpickle scipy easydict torch==1.7.1+cu101 torchvision==0.8.2+cu101 torchaudio==0.7.2 -f https://download.pytorch.org/whl/torch_stable.html