cargo fmt with stable defaults (#876)

codegen/src/utils/fetch_metadata.rs

@@ -1,13 +1,7 @@
 use jsonrpsee::{
     async_client::ClientBuilder,
-    client_transport::ws::{
-        Uri,
-        WsTransportClientBuilder,
-    },
-    core::{
-        client::ClientT,
-        Error,
-    },
+    client_transport::ws::{Uri, WsTransportClientBuilder},
+    core::{client::ClientT, Error},
     http_client::HttpClientBuilder,
     rpc_params,
 };