[FIX] hr: Fix consitency in employee form

Before this commit:
Private email and phone are related of partner 'address' fields.
But the phone was read-only and the email is editable.

After this commit:
As phone and mail are related, they are read-only. We must edit
them on the partner of Address field.

close #38518

closes odoo/odoo#38872

X-original-commit: ed6fb25ca0671a520c9d003a58eefefcf93dbc1a
Signed-off-by: jbm-odoo <jbm-odoo@users.noreply.github.com>

addons/hr/models/hr_employee.py

@@ -48,7 +48,7 @@ class HrEmployeePrivate(models.Model):
         'The employee address has a company linked',
         compute='_compute_is_address_home_a_company',
     )
-    private_email = fields.Char(related='address_home_id.email', string="Private Email", readonly=False, groups="hr.group_hr_user")
+    private_email = fields.Char(related='address_home_id.email', string="Private Email", groups="hr.group_hr_user")
     country_id = fields.Many2one(
         'res.country', 'Nationality (Country)', groups="hr.group_hr_user", tracking=True)
     gender = fields.Selection([