Fix double prefixing in APCu Handler

Author: patel-vansh

system/Cache/Handlers/ApcuHandler.php

@@ -57,12 +57,12 @@ public function save(string $key, $value, int $ttl = 60): bool
 
     public function remember(string $key, callable|int $ttl, Closure $callback): mixed
     {
-        $key = static::validateKey($key, $this->prefix);
-
         if (is_callable($ttl)) {
             return parent::remember($key, $ttl, $callback);
         }
 
+        $key = static::validateKey($key, $this->prefix);
+
         return apcu_entry($key, $callback, $ttl);
     }