Minor lints and clippies (#557)

auth/simple-auth-server/src/register_handler.rs

@@ -5,6 +5,7 @@ use serde::Deserialize;
 use crate::errors::ServiceError;
 use crate::models::{Invitation, Pool, SlimUser, User};
 use crate::utils::hash_password;
+
 // UserData is used to extract data from a post request by the client
 #[derive(Debug, Deserialize)]
 pub struct UserData {