companion for #14088 (#2539)

* companion for #14088

* update lockfile for {"substrate", "polkadot"}

---------

Co-authored-by: parity-processbot <>

cumulus/test/service/src/lib.rs

@@ -753,6 +753,7 @@ pub fn node_config(
 		rpc_max_response_size: Default::default(),
 		rpc_id_provider: None,
 		rpc_max_subs_per_conn: Default::default(),
+		rpc_port: 9945,
 		prometheus_config: None,
 		telemetry_endpoints: None,
 		default_heap_pages: None,