rpc server with HTTP/WS on the same socket (#12663)

* jsonrpsee v0.16

add backwards compatibility

run old http server on http only

* cargo fmt

* update jsonrpsee 0.16.1

* less verbose cors log

* fix nit in log: WS -> HTTP

* revert needless changes in Cargo.lock

* remove unused features in tower

* fix nits; add client-core feature

* jsonrpsee v0.16.2

substrate/utils/frame/rpc/client/src/lib.rs

@@ -43,7 +43,10 @@ use sp_runtime::traits::{Block as BlockT, Header as HeaderT};
 use std::collections::VecDeque;
 
 pub use jsonrpsee::{
-	core::client::{ClientT, Subscription, SubscriptionClientT},
+	core::{
+		client::{ClientT, Subscription, SubscriptionClientT},
+		params::BatchRequestBuilder,
+	},
 	rpc_params,
 	ws_client::{WsClient, WsClientBuilder},
 };