[FIX] l10n_es: Adjust user type mapping for group 8 accounts

It was incorrect in the first pass

addons/l10n_es/migrations/11.0.4.0/account_type_mapping.csv

@@ -162,5 +162,5 @@ code,old_xmlid,new_xmlid
 5953,l10n_es.account_type_financieras,account.data_account_type_current_assets
 5954,l10n_es.account_type_financieras,account.data_account_type_current_assets
 5955,l10n_es.account_type_financieras,account.data_account_type_current_assets
-8,l10n_es.account_type_ingresos_neto,account.data_account_type_expenses
+8,l10n_es.account_type_gastos_neto,account.data_account_type_expenses
 9,l10n_es.account_type_ingresos_neto,account.data_account_type_revenue