[FIX] account: traceback on creating payment method

before this commit, on creating a new payment method
will show traceback.

* using studio add a menu for payment method
* create a payment method and hit on create
* traceback is shown

after this commit, no traceback wont be shown.

closes odoo/odoo#121294

Signed-off-by: Brice Bartoletti (bib) <bib@odoo.com>