[FIX] l10n_uy_reports: logic with UY code

Author: zaoral

l10n_uy_reports/wizards/form_report_wiz.py

@@ -85,9 +85,9 @@ def _get_form_2181_data(self):
         UYU_currency = self.env.ref('base.UYU')
 
         line_code = {}
-        taxes = invoices.mapped('line_ids.tax_ids').filtered(lambda x: x.l10n_uy_dgi_code.form == "2181")
+        taxes = invoices.mapped('line_ids.tax_ids').filtered(lambda x: x.tax_group_id.form == "2181")
         for tax in taxes:
-            line_code.update({tax: tax.l10n_uy_dgi_code.code})
+            line_code.update({tax: tax.tax_group_id.l10n_uy_code})
 
         tax_code = {}
         taxes_group_ids = taxes.mapped('tax_group_id').ids