[FIX] sale_order_dates: Adapt error message
[FIX] sale_order_dates: Adapt error message

The labels of the fields have changed so the error message is not valid anymore.

TASK-ID: 1850406

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo