This update adjusts the size of the 'Fapiao' field in the Chinese localization (l10n_cn) module to 20 characters. Previously, it was limited to 8 characters, which caused issues with longer invoice numbers. This change ensures accurate data capture and avoids data loss when recording Chinese invoices.

with this commit:-
 - We're changing the char size to 20 from 8.
 - We remove the constraint that prevents us from saving the record if the size is not 8.

task-5501485

This update ensures our Peruvian EDI (l10n_pe_edi) tests accurately reflect recent changes in the UBL standard. Specifically, the tests now account for a new 'DeliveryParty' node that was added, ensuring proper processing of invoices according to current regulations. This improves the reliability of our Peruvian accounting module.

This commit is a part of a bigger commit on the community PR side. Tests on `l10n_pe_edi` have been updated to reflect the latest change; where the `DeliveryParty` node is now added (previously it was never filled).

related-community-PR: https://github.com/odoo/odoo/pull/243590

task-4891206