[FIX] mrp: trigger scheduler in manufacturing multi steps

Usecase to reproduce:
- Enable multi steps manufacturing (pbm at least)
- Set a RR 0 0 on a component
- Confirm the MO

-> The scheduler is not run for the components

It happens because only the moves raw are confirm and not
the pickings from the procurement group (like in SO)

Part-of: odoo/odoo#75144

addons/mrp/models/mrp_production.py

@@ -1151,6 +1151,8 @@ class MrpProduction(models.Model):
             production.workorder_ids._action_confirm()
         # run scheduler for moves forecasted to not have enough in stock
         self.move_raw_ids._trigger_scheduler()
+        self.picking_ids.filtered(
+            lambda p: p.state not in ['cancel', 'done']).action_confirm()
         self.state = 'confirmed'
         return True