sync_state_dump test holds a lock across an await point

[nagisa]

nearcore/integration-tests/src/tests/client/sync_state_nodes.rs

Lines 518 to 519 in 3fc242f

	if let Some(view_client2) = &*view_client2_holder.write().unwrap() {
	match view_client2.send(GetBlock::latest().with_span_context()).await {

In this test

if let Some(view_client2) = &*view_client2_holder.write().unwrap() {

grabs a write lock, and then the test proceeds to immediately await afterwards. In Rust locks should not be held across await points as that’s a recipe for a deadlock if any other tasks need this same lock to make progress.