Fix default features warnings (#894)

Author: ladvoc

Cargo.toml

@@ -56,7 +56,7 @@ clap = "4.5"
 console-subscriber = "0.1"
 env_logger = "0.11"
 futures = "0.3"
-futures-util = "0.3"
+futures-util = { version = "0.3", default-features = false }
 lazy_static = "1.4"
 log = "0.4"
 parking_lot = "0.12"
@@ -67,7 +67,7 @@ rand = "0.9"
 serde = "1"
 serde_json = "1.0"
 thiserror = "1"
-tokio = "1"
+tokio = { version = "1", default-features = false }
 
 [profile.release]
 opt-level = "z"