Update postman collection

Author: mcheung-nhs

specification/nhs-website-content-api.yaml

@@ -334,7 +334,7 @@ info:
 
     Alternatively, you can try out the sandbox using our Postman collection:
 
-    [![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/36572637-1a2e26f1-bfb2-45b6-bab3-f9f1a4126a3c)
+    [![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/36572637-700d4550-5fd8-495d-8a4a-8e7c84324497)
 
     ### Integration test environment
     Our [integration test environment](https://digital.nhs.uk/developer/guides-and-documentation/testing#integration-testing):