🐛(back) override AI feature flag in config test

The env.d/development/common file sets
AI_FEATURE_ENABLED=true.
When pytest starts it imports these variables, so
the /api/v1.0/config endpoint returns
AI_FEATURE_ENABLED=True and the test_api_config
assertion fails.

Explicitly overriding AI_FEATURE_ENABLED=False in
test_api_config restores the expected behaviour
and makes the whole test-suite green.

Signed-off-by: ReinforcedKnowledge <reinforced.knowledge@gmail.com>

src/backend/core/tests/test_api_config.py

@@ -18,6 +18,7 @@ pytestmark = pytest.mark.django_db
 
 
 @override_settings(
+    AI_FEATURE_ENABLED=False,
     COLLABORATION_WS_URL="http://testcollab/",
     CRISP_WEBSITE_ID="123",
     FRONTEND_CSS_URL="http://testcss/",