Merge pull request #305 from Metaswitch/dependabot/cargo/uuid-1.4.1

Author: dependabot[bot]

Cargo.lock

@@ -20,7 +20,7 @@ log = "0.4"
 serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.9"
 structopt = "0.3"
-uuid = { version = "1.3", features = ["v4"] }
+uuid = { version = "1.4", features = ["v4"] }
 yaml-rust = "0.4.4"
 simplelog = "0.12"
 nix = { version = "0.26", default-features = false, features = ["user"] }