Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -26,6 +26,8 @@ dot:
   stage: build
   image: renku/singleuser:latest
   script:
+    - echo $PATH
+    - renku --version
     - renku log --format dot $(git ls-files --no-empty-directory --recurse-submodules) > graph.dot
   artifacts:
     paths: