Update Rust crate futures to v0.3.31

Author: renovate[bot]

Cargo.lock

@@ -11,7 +11,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 env_logger = "0.11.0"
 log = "0.4"
-futures = "0.3"
+futures = "0.3.30"
 utoipa = { version = "4", features = ["actix_extras"] }
 utoipa-swagger-ui = { version = "6", features = ["actix-web"] }
 sea-orm = { version = "^0.12.12", features = [ "sqlx-sqlite", "runtime-actix-rustls", "macros", "mock" ] }