Update src/main/resources/assets/schemas/DarMetric.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: rushtong

src/main/resources/assets/schemas/DarMetric.yaml

@@ -15,3 +15,6 @@ properties:
   expired:
     type: boolean
     description: Whether the DAR is expired
+  referenceId:
+    type: string
+    description: The reference identifier for the DAR