Removed duplicated prefix when use dynamodb cache lock (#52986)

Close #52954

This PR remove the duplicated prefix when use DynamoDB as cache drive and try to lock

DynamoDB Key now:
laravel_cache_laravel_cache_my-lock

DynamoDB Key after:
laravel_cache_my-lock

src/Illuminate/Cache/DynamoDbStore.php

@@ -412,7 +412,7 @@ public function forever($key, $value)
      */
     public function lock($name, $seconds = 0, $owner = null)
     {
-        return new DynamoDbLock($this, $this->prefix.$name, $seconds, $owner);
+        return new DynamoDbLock($this, $name, $seconds, $owner);
     }
 
     /**