[FIX] maintenance: use company_id

Steps to reproduce:
- Create a new Maintenance Request
- Set an Equipment

Issue:
In the compute we use `company` instead of `company_id`.

closes odoo/odoo#140062

Signed-off-by: William Henrotin (whe) <whe@odoo.com>

addons/maintenance/models/maintenance.py

@@ -290,7 +290,7 @@ class MaintenanceRequest(models.Model):
         for request in self:
             if request.equipment_id:
                 request.user_id = request.equipment_id.technician_user_id or request.equipment_id.category_id.technician_user_id
-            if request.user_id and request.company.id not in request.user_id.company_ids.ids:
+            if request.user_id and request.company_id.id not in request.user_id.company_ids.ids:
                 request.user_id = False
 
     @api.depends('maintenance_type')