Add missing system packages

Author: PastelStorm

.github/workflows/ci.yml

@@ -111,8 +111,8 @@ jobs:
     - name: Test Dockerfile
       run: |
         python${{ env.PYTHON_VERSION }} -m venv .venv
-        make install-test
         source .venv/bin/activate
+        make install-test
         make docker-build
         make docker-test
     # - name: Scan image

Dockerfile

@@ -11,7 +11,7 @@ ARG PYTHON_VERSION="3.12"
 
 USER root
 
-RUN apk add --no-cache shadow \
+RUN apk add --no-cache mesa-gl shadow \
  && useradd -m -u ${NB_UID} -s /bin/sh ${NB_USER}
 RUN chown -R ${NB_USER}:${NB_USER} ${HOME}