Bump codeserver dev

docker/codeserver/Dockerfile

@@ -13,5 +13,6 @@ RUN sudo apt install -y wget
 RUN sudo apt install -y python3
 RUN sudo apt install -y python3-pip
 RUN sudo npm install -g @bazel/bazelisk 
+RUN sudo apt install -y python-dev default-libmysqlclient-dev
 
 COPY resolv.conf /etc/resolv.conf