[FIX] account: Show receipt residual amount in invoice currency

When paying an invoice in USD, using EUR as payment. The residual amount was shown in the payment currency instead of the original invoice residual currency.

closes odoo/odoo#26916

addons/account/report/account_report_payment_receipt_templates.xml

@@ -47,7 +47,7 @@
                                     <td><span t-field="inv.date_invoice"/></td>
                                     <td><span t-field="inv.number"/></td>
                                     <td class="text-right"><span t-field="inv.amount_total"/></td>
-                                    <td class="text-right"><span t-esc="inv.amount_total - inv.residual" t-options="{'widget': 'monetary', 'display_currency': o.currency_id}"/></td>
+                                    <td class="text-right"><span t-esc="inv.amount_total - inv.residual" t-options="{'widget': 'monetary', 'display_currency': inv.currency_id}"/></td>
                                     <td class="text-right"><span t-field="inv.residual"/></td>
                                 </tr>
                             </tbody>