[FIX] hr_holidays: allow to create leaves with no validation
[FIX] hr_holidays: allow to create leaves with no validation

- The creation of leaves using "no validation" are not possible
  if the `SUPERUSER` is not in the "Holidays / Team Leader" because
  the validation is made using `sudo`.

OPW-1951316

closes odoo/odoo#31952

Signed-off-by: Toufik Benjaa (tbe) <c6f81aa4457266a65463c97406f59c8b81e8d7de@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo