Use postgres native array_position function instead of our FIELD function and pass it as array literal instead of variadic function

Otherwise we will run into errors, that we can not give more than 100 arguments to a function

config/packages/doctrine.yaml

@@ -47,6 +47,7 @@ doctrine:
                 field:  DoctrineExtensions\Query\Mysql\Field
                 field2: App\Doctrine\Functions\Field2
                 natsort: App\Doctrine\Functions\Natsort
+                array_position: App\Doctrine\Functions\ArrayPosition
 
 when@test:
     doctrine: