Fix cargo clippy issues

src/controllers/two_factor_api.rs

@@ -94,7 +94,7 @@ pub async fn save_webauthn_factor(
     let key = match manager.finish_registration(&user, &form.0.opaque_state, form.0.credential) {
         Ok(k) => k,
         Err(e) => {
-            log::error!("Failed to register security key! {:?}", e);
+            log::error!("Failed to register security key! {e:?}");
             return HttpResponse::InternalServerError().body("Failed to register key!");
         }
     };