Upgrade helm chart

Bug: T343116

images/paws-hub/Dockerfile

@@ -1,4 +1,4 @@
-FROM jupyterhub/k8s-hub:2.0.0
+FROM jupyterhub/k8s-hub:2.0.0:3.0.0-beta.3.git.6256.hc3c4e121
 ARG NB_USER=tools.paws
 ARG NB_UID=52771
 ARG HOME=/home/paws

images/singleuser/Dockerfile

@@ -45,8 +45,7 @@ RUN pip --no-cache-dir install -U pip setuptools wheel
 # Install base notebook packages
 RUN pip install --prefix=/srv/paws --no-cache-dir \
     jupyterhub==4.0.0 \
-    notebook==6.4.12 \
-    jupyterlab==3.4.8
+    jupyterlab==4.0.3
 
 ## End minimal setup ##
 
@@ -262,17 +261,4 @@ COPY banner /etc/bash.bashrc
 # use custom css to hide clusters tab
 COPY --chown=tools.paws:tools.paws hide_clusters_tab.css /home/paws/.jupyter/custom/custom.css
 
-## Install SPARQL
-USER root
-RUN apt-get update && \
-    apt-get install --yes \
-    # For sparql kernel
-    graphviz
-
-USER ${NB_USER}
-RUN pip install --no-cache-dir sparqlkernel
-RUN python3 -m jupyter sparqlkernel install --sys-prefix
-
-## End SPARQL Install
-
 EXPOSE 8888

paws/Chart.yaml

@@ -3,8 +3,8 @@
 apiVersion: v2
 description: A Helm chart for PAWS
 name: paws
-version: "2.7"
+version: "2.8"
 dependencies:
   - name: jupyterhub
-    version: "2.0.0"
+    version: "3.0.0-beta.3.git.6259.h5b6e57ed"
     repository: "https://jupyterhub.github.io/helm-chart"