test ci

.gitlab-ci.yml

 # Taken from https://hub.docker.com/r/rootproject/root
-image: rootproject/root:6.30.02-alma9
+image: rootproject/root:6.30.06-ubuntu22.04
 
 stages:
   - run
@@ -17,9 +17,10 @@ cache:
 before_script:
   - set +e
   - export PATH=${HOME}/.local/bin/:$PATH
-  - dnf install xrootd-client xrootd-server python3-xrootd -y
+  - apt install xrootd-client xrootd-server python3-xrootd -y
+  - apt install diffutils -y
   - pip install --user .
-  - python -c 'import quickstats as q; print(q.__version__)'
+  - python3 -c 'import quickstats as q; print(q.__version__)'
 
 fit_bbyy:
   stage: run