[FIX] l10n_fr_pos_certif: fix post push order when not french.

When the french certification is installed for the pos, there is an error when we use it in a company that is not french.
The format of the values sent was not identical to the format of the values expected.
Now the order and the server_id are sent separetly to match the parent function.

closes odoo/odoo#43476

X-original-commit: 657133a2
Signed-off-by: pimodoo <pimodoo@users.noreply.github.com>