[FIX] l10n_fr_certification : fix string_to_hash computation
[FIX] l10n_fr_certification : fix string_to_hash computation

- use datas of all lines, and not only the last lines.
- removed useless 'move_id' field from account.move.line

Was PR #18175. Courtesy of Sylvain Legal
ygol/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,ygol/odoo,Elico-Corp/odoo_OCB,ygol/odoo,Elico-Corp/odoo_OCB,ygol/odoo,Elico-Corp/odoo_OCB,ygol/odoo,ygol/odoo,ygol/odoo,Elico-Corp/odoo_OCB