test: update electrsd to fix RUSTSEC-2024-0384 warning

Author: notmandatory

Cargo.toml

@@ -111,7 +111,7 @@ miniscript = { version = "10.0", features = ["std"] }
 bitcoin = { version = "0.30", features = ["std"] }
 lazy_static = "1.4"
 env_logger = { version = "0.7", default-features = false }
-electrsd = "0.24.0"
+electrsd = "0.29.0"
 assert_matches = "1.5.0"
 
 [[example]]