[IMP] calendar,hr_work_entry: Allow user deletion if linked to filter

Purpose
=======

Currently the on_delete='restrict' implicit constraint prevents
the user deletion in case it's linked to a personal calendar filter
record.

Set the on_delete attribute to 'cascade' as the record is not
of any usage without the user anyway.

Taskid: 3222941
Part-of: odoo/odoo#114656

addons/calendar/models/calendar_filter.py

@@ -8,7 +8,7 @@ class Contacts(models.Model):
     _name = 'calendar.filters'
     _description = 'Calendar Filters'
 
-    user_id = fields.Many2one('res.users', 'Me', required=True, default=lambda self: self.env.user, index=True)
+    user_id = fields.Many2one('res.users', 'Me', required=True, default=lambda self: self.env.user, index=True, ondelete='cascade')
     partner_id = fields.Many2one('res.partner', 'Employee', required=True, index=True)
     active = fields.Boolean('Active', default=True)
     partner_checked = fields.Boolean('Checked', default=True)  # used to know if the partner is checked in the filter of the calendar view for the user_id.

addons/hr_work_entry/models/hr_work_entry.py

@@ -260,7 +260,7 @@ class Contacts(models.Model):
     _name = 'hr.user.work.entry.employee'
     _description = 'Work Entries Employees'
 
-    user_id = fields.Many2one('res.users', 'Me', required=True, default=lambda self: self.env.user)
+    user_id = fields.Many2one('res.users', 'Me', required=True, default=lambda self: self.env.user, ondelete='cascade')
     employee_id = fields.Many2one('hr.employee', 'Employee', required=True)
     active = fields.Boolean('Active', default=True)