fixup! Update ldk-node dependency

Use the shared E2E event helper now available on main to avoid an
unused import after the rebase.

AI assistance: OpenAI Codex was used for this change.

Author: benthecarman

e2e-tests/tests/e2e.rs

@@ -22,7 +22,6 @@ use ldk_node::lightning::ln::msgs::SocketAddress;
 use ldk_node::lightning::offers::offer::Offer;
 use ldk_node::lightning::offers::refund::Refund;
 use ldk_node::lightning_invoice::Bolt11Invoice;
-use ldk_server_client::client::EventStream;
 use ldk_server_client::error::LdkServerErrorCode::InvalidRequestError;
 use ldk_server_client::ldk_server_grpc::api::{
 	open_channel_request, Bolt11ClaimForIdRequest, Bolt11FailForIdRequest, Bolt11ReceiveRequest,