Update Dockerfile

Dockerfile

@@ -11,7 +11,7 @@ RUN add-apt-repository ppa:flexiondotorg/nvtop
 RUN apt-get upgrade -y
 RUN apt-get install -y nvtop
 
-RUN curl -sL https://deb.nodesource.com/setup_18.x  | bash -
+RUN curl -sL https://deb.nodesource.com/setup_20.x  | bash -
 RUN apt-get install -y nodejs
 # RUN npm install
 RUN npm install -g configurable-http-proxy
@@ -25,8 +25,9 @@ RUN pip3 install jupyterhub && \
     pip3 install --upgrade jupyterlab jupyterlab-git && \
     pip3 install ipywidgets && \
     pip3 install torch torchvision torchaudio && \
-    pip3 install langchain trulens-eval trulens && \
-    jupyter lab build --dev-build=False --minimize=False
+    pip3 install langchain trulens-eval trulens
+    
+RUN jupyter lab build --dev-build=False --minimize=False
 
 RUN jupyter contrib nbextension install --user \
     jupyter nbextension enable --py widgetsnbextension