Make sure pelican plugins are available

.gitlab-ci.yml

@@ -41,8 +41,9 @@ review:
     GIT_STRATEGY: clone
     VUE_APP_ROUTER_BASE_URL: /-/$CI_PROJECT_NAME/-/jobs/$CI_JOB_ID/artifacts/review/
   before_script:
-    - apt-get update && apt-get install make
+    - apt-get update && apt-get install make git
     - pip install poetry
+    - git submodule update --init --recursive
     - poetry install
   script:
     - poetry run make html