fix: Cannot run ui-middleware without redis

Root cause: Circular dependency causes undefined function
Solution: As the registration of the listener can be async, just use a simple setTimeout

src/redis.js

@@ -75,7 +75,9 @@ if (isEnabled()) {
 
   registerLatestVersionListener(subClient)
 } else {
-  setInterval(updateVersionProcessor, Number(process.env.CACHE_TTL))
+  setTimeout(() => {
+    setInterval(updateVersionProcessor, Number(process.env.CACHE_TTL))
+  })
 }
 
 /*