use secure uuid.v4 as session cookie secret

uuid.v1 is considered insecure and thus the secret could be bruteforced. Instead this will use uuid.v4 which includes proper randomness

Author: Otto-AA

lib/create-app.js

@@ -302,7 +302,7 @@ function initAuthentication (app, argv) {
 function sessionSettings (secureCookies, host) {
   const sessionSettings = {
     name: 'nssidp.sid',
-    secret: uuid.v1(),
+    secret: uuid.v4(),
     saveUninitialized: false,
     resave: false,
     rolling: true,