[FIX] account: UK country code
[FIX] account: UK country code

The country code for United Kingdom is GB.

closes odoo/odoo#35828

Signed-off-by: Nicolas Martinelli (nim) <771435c469f83f6aa9c405ac5e1ed06314a94f2d@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo