Update Dockerfile

Dockerfile

@@ -117,9 +117,9 @@ RUN jupyter labextension install @krassowski/jupyterlab-lsp
 
 # Copy the current directory contents into the container at $HOME/app setting the owner to the user
 COPY --chown=user . $HOME/app
-
+USER root
 RUN chmod +x start_server.sh
-
+RUN bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"
 COPY --chown=user login.html /home/user/miniconda/lib/python3.9/site-packages/jupyter_server/templates/login.html
 
 ENV PYTHONUNBUFFERED=1 \