Update Rust crate kble-socket to 0.4.0

Author: renovate[bot]

Cargo.lock

@@ -8,7 +8,7 @@ edition = "2021"
 c2a-core = "4"
 once_cell = "1"
 futures = "0.3"
-kble-socket = { version = "0.3.0", features = ["axum"] }
+kble-socket = { version = "0.4.0", features = ["axum"] }
 tokio = { version = "1", features = ["sync", "rt"] }
 axum = { version = "0.6", default-features = false, features = ["tokio", "http1", "ws"] }
 anyhow = "1"