Fix dev dependencies for message extraction

.gitlab-ci.yml

@@ -13,7 +13,7 @@ build_dist:
   interruptible: true
   stage: build
   before_script:
-    - pip3 install poetry babel
+    - pip3 install poetry babel jinja2
     - apt -y update
     - apt -y install make
   script:

pyproject.toml

@@ -17,6 +17,8 @@ pelican-sitemap = "^1.0.2"
 pelican-jinja2content = "^1.0.1"
 
 [tool.poetry.dev-dependencies]
+Jinja2 = "^3.0.1"
+Babel = "^2.9.1"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]