fix IPv6 connection failures with Happy Eyeballs (RFC 8305)

Implement a custom WebSocketTransport that races IPv6 and IPv4 connections
with a 250ms head start for IPv6, matching browser behavior. This prevents
broken IPv6 from blocking all relay connections indefinitely.

This is a temporary fix until the upstream async-wsocket PR is merged:
https://github.com/shadowylab/async-wsocket/pull/42

1 files changed, 2 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 7adf6ff..721893e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,7 @@ categories = ["command-line-utilities","development-tools"]
 [dependencies]
 anyhow = "1.0.98"
 async-trait = "0.1.88"
+async-wsocket = "0.13.1" # TEMPORARY: remove when transport.rs is deleted. See transport.rs header.
 auth-git2 = "0.5.8"
 chacha20poly1305 = "0.10.1"
 chrono = "0.4"
@@ -39,6 +40,7 @@ serde = { version = "1.0.219", features = ["derive"] }
 serde_json = "1.0.140"
 serde_yaml = "0.9.34"
 tokio = { version = "1.46.1", features = ["full"] }
+tokio-tungstenite = "0.26.2" # TEMPORARY: remove when transport.rs is deleted. See transport.rs header.
 urlencoding = "2.1.3"
 zeroize = "1.8.1"