SONARPY-1518 Avoid relying on stubs from a library if it is the project under analysis (#1819)

Author: guillaume-dequenne

its/ruling/src/test/resources/expected/python-S2092.json

@@ -1,8 +1,5 @@
 {
 "project:django-2.2.3/django/http/response.py": [
 217
-],
-"project:django-2.2.3/django/views/i18n.py": [
-51
 ]
 }