Update Rust crate rand to 0.9

Author: renovate[bot]

Cargo.toml

@@ -11,7 +11,7 @@ repository = "https://github.com/Norwik/Bobcat"
 
 [dependencies]
 tokio = { version = "1.35.0", features = ["full"] }
-rand = "0.8"
+rand = "0.9"
 dotenv = "0.15.0"
 dotenv_codegen = "0.15.0"
 serde = { version = "1.0", features = ["derive"] }