NPA-5305: Fix extra ) in specification

Author: JackPlowman

specification/validated-relationships-service-api.yaml

@@ -141,7 +141,7 @@ info:
     * only covers a limited set of scenarios
     * is open access, so does not allow you to test authorisation
 
-    [<img src="https://run.pstmn.io/button.svg" alt="Run In Postman" style="width: 128px; height: 32px;">](https://god.gw.postman.com/run-collection/46399153-73a3846c-092a-44a1-940f-18736fb1f411?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D46399153-73a3846c-092a-44a1-940f-18736fb1f411%26entityType%3Dcollection%26workspaceId%3D34c06bc9-c5de-4206-b931-9ee51c810dbb))
+    [<img src="https://run.pstmn.io/button.svg" alt="Run In Postman" style="width: 128px; height: 32px;">](https://god.gw.postman.com/run-collection/46399153-73a3846c-092a-44a1-940f-18736fb1f411?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D46399153-73a3846c-092a-44a1-940f-18736fb1f411%26entityType%3Dcollection%26workspaceId%3D34c06bc9-c5de-4206-b931-9ee51c810dbb)
 
     ### Integration testing