[FIX] l10n_ar_stock: Solve issue when generate cot with some stock li…

…ne cancelled.

For the generation of the cot, the quantity zero is forbidden, with this change we ensure that any quantity must be different than zero.

l10n_ar_stock/models/stock_picking.py

@@ -317,7 +317,7 @@ def get_arba_file_data(
                 str(int(round(importe * 100.0)))[-14:],
             ])
 
-            for line in rec.mapped('move_lines'):
+            for line in rec.mapped('move_lines').filtered(lambda x: x.product_uom_qty):
 
                 # buscamos si hay unidad de medida de la cateogria que tenga
                 # codigo de arba y usamos esa, ademas convertimos la cantidad