fix(anomaly thresholds): add email level feature flag (#104170)

Author: shayna-ch

src/sentry/workflow_engine/endpoints/organization_detector_anomaly_data.py

@@ -38,7 +38,9 @@ def get(self, request: Request, organization: Organization, detector_id: str) ->
         """
         Return anomaly detection threshold data (yhat_lower, yhat_upper) for a detector.
         """
-        if not features.has("organizations:anomaly-detection-threshold-data", organization):
+        if not features.has(
+            "organizations:anomaly-detection-threshold-data", organization, actor=request.user
+        ):
             raise ResourceDoesNotExist
 
         try: