Update to 2024 edition (#2001)

* Update to 2024 edition

* Update to 2024 edition; fmt, use<> and remove refs

* async functions

testing/integration-tests/src/full_client/frame/contracts.rs

@@ -3,20 +3,21 @@
 // see LICENSE for license details.
 
 use crate::{
+    TestClient, TestConfig, TestContext,
     node_runtime::{
         self,
         contracts::events,
         runtime_types::{pallet_contracts::wasm::Determinism, sp_weights::weight_v2::Weight},
         system,
     },
-    subxt_test, test_context, TestClient, TestConfig, TestContext,
+    subxt_test, test_context,
 };
 use subxt::ext::futures::StreamExt;
 use subxt::{
+    Error,
     config::{Config, HashFor},
     tx::TxProgress,
     utils::MultiAddress,
-    Error,
 };
 use subxt_signer::sr25519::{self, dev};
 

testing/integration-tests/src/full_client/frame/staking.rs

@@ -16,8 +16,8 @@ use crate::{
 use assert_matches::assert_matches;
 use subxt::error::{DispatchError, Error};
 use subxt_signer::{
-    sr25519::{self, dev},
     SecretUri,
+    sr25519::{self, dev},
 };
 
 /// Helper function to generate a crypto pair from seed