[FIX] hr: override get_views for dashboard employee filters

Purpose of this commit:
Currently, people having access to different dashboards
without any access rights would end up with a traceback
when trying to search more employees.

Steps to reproduce this issue:
- have a user with timesheet officer rights and no hr rights
- log in with that user account
- go on the dashboard app and select "Timesheets"
- go on employee filter and click on "search more"

Current behaviour:
A traceback is displayed because the user has no access to the view

Expected behaviour:
The public employee search view should be displayed

How the issue was fixed:
The method called `_get_views` has been overriden in
the `hr.employee` model to return the `hr.employee.public` views
instead. As there was no way through the dashboard to define a
relation, the method explicitely takes the result for the
public employee and sets it as result of the private one as well.

closes odoo/odoo#158380

X-original-commit: 6e304037023545eb7eb453d5656f7e1769615d38
Signed-off-by: Sofie Gvaladze (sgv) <sgv@odoo.com>
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>
Signed-off-by: Bertrand Dossogne (bedo) <bedo@odoo.com>

addons/hr/models/hr_employee.py

@@ -284,6 +284,14 @@ class HrEmployeePrivate(models.Model):
             return super().get_view(view_id, view_type, **options)
         return self.env['hr.employee.public'].get_view(view_id, view_type, **options)
 
+    @api.model
+    def get_views(self, views, options=None):
+        if self.check_access_rights('read', raise_exception=False):
+            return super().get_views(views, options)
+        res = self.env['hr.employee.public'].get_views(views, options)
+        res['models'].update({'hr.employee': res['models']['hr.employee.public']})
+        return res
+
     @api.model
     def _search(self, domain, offset=0, limit=None, order=None, access_rights_uid=None):
         """