[FIX] point_of_sale: allow deletion of contact to any user

Before this fix, if the user has no PoS access rights, he cannot delete a contact
due to a check done on open PoS sessions.

closes odoo/odoo#45868

X-original-commit: f7b83cfc41045e1cc81d2e1c5540ac105f333a61
Signed-off-by: Alex Tuyls <alt-odoo@users.noreply.github.com>

addons/point_of_sale/models/res_partner.py

@@ -40,7 +40,7 @@ class ResPartner(models.Model):
         return partner_id
 
     def unlink(self):
-        running_sessions = self.env['pos.session'].search([('state', '!=', 'closed')])
+        running_sessions = self.env['pos.session'].sudo().search([('state', '!=', 'closed')])
         if running_sessions:
             raise UserError(
                 _("You cannot delete contacts while there are active PoS sessions. Close the session(s) %s first.")