Update dev-dependencies

Author: Rémi Lauzier

Cargo.toml

@@ -51,8 +51,8 @@ winapi = { version = "0.3", features = ["winsock2", "mswsock", "mstcpip"] }
 ntapi  = "0.3"
 
 [dev-dependencies]
-env_logger = { version = "0.6.2", default-features = false }
-rand = "0.4"
+env_logger = { version = "0.8.4", default-features = false }
+rand = "0.8"
 
 [package.metadata.docs.rs]
 all-features = true