[FIX] delivery: update carrier also on delivery

Create a sale order, add a product and shipping line
Confirm
Update shipping cost changing carrier
Save

Carrier on picking is not updated with the change

opw-2496008

closes #72859

Signed-off-by: agr-odoo <agr-odoo@users.noreply.github.com>

addons/delivery/models/sale_order.py

@@ -111,6 +111,8 @@ def _create_delivery_line(self, carrier, price_unit):
             values['name'] += '\n' + 'Free Shipping'
         if self.order_line:
             values['sequence'] = self.order_line[-1].sequence + 1
+        if self.picking_ids:
+            self.picking_ids.write({'carrier_id': carrier.id})
         sol = SaleOrderLine.sudo().create(values)
         return sol