chore(deps): bump tokio-tungstenite from 0.28.0 to 0.29.0

Cargo.toml

@@ -487,7 +487,7 @@ soldeer-core = { version = "=0.10.1", features = ["serde"] }
 strum = "0.27"
 tempfile = "3.23"
 tokio = "1"
-tokio-tungstenite = { version = "0.28", features = ["rustls-tls-webpki-roots"] }
+tokio-tungstenite = { version = "0.29", features = ["rustls-tls-webpki-roots"] }
 toml = "0.9"
 toml_edit = "0.24"
 tower = "0.5"

crates/anvil/server/src/handler.rs

@@ -49,7 +49,9 @@ pub async fn handle_request<Handler: RpcHandler>(
         Request::Single(call) => handle_call(call, handler).await.map(Response::Single),
         Request::Batch(calls) => {
             if calls.is_empty() {
-                return Some(Response::error(RpcError::invalid_request()));
+                return Some(Response::Batch(vec![anvil_rpc::response::RpcResponse::from(
+                    RpcError::invalid_request(),
+                )]));
             }
             future::join_all(calls.into_iter().map(move |call| handle_call(call, handler.clone())))
                 .map(responses_as_batch)