[FIX] hr_payroll: validate leave without being Contracts/Manager

Contracts are only accessible by managers which raise an exception in
_create_resource_leave if not sudo()

closes odoo/odoo#33613

Signed-off-by: Toufik Benjaa (tbe) <tbe@odoo.com>

addons/hr_payroll/models/hr_leave.py

@@ -55,7 +55,7 @@ class HrLeave(models.Model):
 
         for leave in self.filtered(lambda l: l.employee_id):
 
-            contract = leave.employee_id._get_contracts(leave.date_from, leave.date_to, states=['open', 'pending'])
+            contract = leave.employee_id.sudo()._get_contracts(leave.date_from, leave.date_to, states=['open', 'pending'])
             if contract and contract.resource_calendar_id != leave.employee_id.resource_calendar_id:
                 resource_leave_values += [{
                     'name': leave.name,