update base image

switch to latest stable image (Ubuntu 24.04, Python 3.11, R 4.3.3)

base/Dockerfile

 # https://jupyter-docker-stacks.readthedocs.io/en/latest/#using-old-images
-FROM jupyter/minimal-notebook:a374cab4fcb6
+FROM quay.io/jupyter/minimal-notebook:b74418220768
 
 LABEL maintainer="Collaboratory Platform <platform@humanbrainproject.eu>"
 
@@ -18,7 +18,7 @@ USER root
 RUN ln -sf /usr/share/zoneinfo/Europe/Zurich /etc/localtime
 
 # Set to noninteractive for install
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update --yes && \
     apt-get install --yes \
     cmake \
@@ -66,14 +66,14 @@ RUN jupyter labextension install --no-build \
 RUN jupyter lab build
 
 RUN jupyter notebook --generate-config
-RUN mkdir -p /opt/app-root/src/.ipython/profile_default/startup/ /opt/app-root/src/.local/lib/python3.8/site-packages/ /tmp/cache/
+RUN mkdir -p /opt/app-root/src/.ipython/profile_default/startup/ /tmp/cache/
 
 # Preload clb_oauth
 RUN echo 'from clb_nb_utils import oauth as clb_oauth' >> /opt/app-root/src/.ipython/profile_default/startup/50-clb-nb-utils.py
 
 # install R kernel
 RUN R --slave -e "install.packages('IRkernel')"
-RUN R --slave -e "IRkernel::installspec(name = 'ir363', displayname = 'R 3.6.3')"
+RUN R --slave -e "IRkernel::installspec(name = 'ir', displayname = 'R 4.3.3')"
 
 # disable core dumps
 RUN echo "* - core 0" >> /etc/security/limits.conf