CCM-14511: Add PDS Source Change Number to Message Status Callback

specification/schemas/components/MessageStatus.yaml

@@ -43,6 +43,11 @@ properties:
         example: '2023-11-17T14:27:51.413Z'
       routingPlan:
         $ref: ../types/RoutingPlan.yaml
+      metadata:
+        type: array
+        minItems: 1
+        items:
+          $ref: ../types/Metadata.yaml
     required:
       - messageId
       - messageReference

specification/schemas/types/Metadata.yaml

@@ -0,0 +1,18 @@
+type: object
+additionalProperties: false
+properties:
+  version:
+    type: string
+    description: The version identifier of the source data at the time it was queried
+    example: '2'
+  queriedAt:
+    type: date-time
+    description: The timestamp when the source was queried
+    example: '2023-11-17T14:27:51.413Z'
+  source:
+    type: string
+    description: This identifies the source of the metadata. This is a free text field and can be used to identify the system that provided the metadata.
+    example: 'pds'
+required:
+  - queriedAt
+  - source