Add missing array

app/Services/FireflyIIIOrg/Update/UpdateRequest.php

@@ -227,6 +227,7 @@ class UpdateRequest implements UpdateRequestInterface
     {
         Log::debug(sprintf('User is running develop version "%s"', $current));
         $parts  = explode('/', $current);
+        $return = [];
 
         /** @var Carbon $devDate */
         $devDate = Carbon::createFromFormat('Y-m-d', $parts[1]);