fix: Add Jinja2 dependency which is needed for the Docker image build

since there is the pyramid.ini.j2

cubicweb_rodolf/__pkginfo__.py

@@ -19,6 +19,7 @@
     "cubicweb-rq": None,
     "requests": None,
     "pyshacl": None,
+    "Jinja2": None,
 }
 __recommends__ = {}