docs: remove unneeded argument

Author: kenjis

user_guide_src/source/database/query_builder/110.php

@@ -7,7 +7,7 @@
     'country' => 'Afghanistan',
 ];
 
-$builder->updateFields('name, country')->setData($data, null, '_upsert')->upsert($data);
+$builder->updateFields('name, country')->setData($data, null, '_upsert')->upsert();
 /* SQLSRV produces:
     MERGE INTO "test"."dbo"."db_user"
     USING (