fix: Add usage_outliers until it is removed from api server

Author: arajkumar

src/v2/models.py

@@ -221,6 +221,7 @@ class StackRecommendationResult(BaseModel):  # noqa: D101
     registration_status: str
     recommendation_status: 'RecommendationStatus' = 'success'
     companion: List['RecommendedPackageData']
+    usage_outliers: List[Dict[str, Any]] = []
 
 
 class RecommenderRequest(StackAggregatorRequest):  # noqa: D101

tests/v2/test_recommender_api.py

@@ -151,6 +151,7 @@ def test_recommendation_response_with_empty_insight_response(
             "manifest_name": None,
             "recommendation_status": "success",
             "registration_status": "FREETIER",
+            "usage_outliers": [],
             "uuid": None,
         },
     }
@@ -190,6 +191,7 @@ def test_recommendation_response_with_empty_graph(
         "manifest_name": None,
         "recommendation_status": "success",
         "registration_status": "FREETIER",
+        "usage_outliers": [],
         "uuid": None,
     }
 
@@ -320,5 +322,6 @@ def test_recommendation_response_with_2_packages_from_graph(
         "manifest_name": None,
         "recommendation_status": "success",
         "registration_status": "FREETIER",
+        "usage_outliers": [],
         "uuid": None,
     }