[FIX] account_edi_ubl: Make UBL template EFFF-compatible

Since https://github.com/odoo/odoo/pull/69124,the UBL template is wrong because of the order of the elements in `PaymentMeans` because it is a sequence
`PaymentDueDate` must be in second position (before `InstructionId`)

https://www.w3schools.com/xml/el_sequence.asp
https://docs.oasis-open.org/ubl/prd1-UBL-2.1/xsd/common/UBL-CommonAggregateComponents-2.1.xsd


see `<xsd: complexType name = "PaymentMeansType">`

OPW-2468492

closes odoo/odoo#77317

Signed-off-by: William André (wan) <wan@odoo.com>