[FIX] crm_website: fix the type of a lead created with the contact form

Lead/Opportunity type
=====================
In the settings, if ``group_use_leads`` is checked, we add the group ``use_leads`` to all users in the group ``base.group_user``

To know if the setting is checked, in the model ``crm.lead``, we compute this code,
```
self.env['res.users'].has_group('crm.group_use_lead')
```

In 12.0
=======
When we compute ``sudo``, we are as the admin user.
The admin user is in the group ``base.group_user`` and so, he can be in the group ``use_leads``,
so everything work fine.

In 13.0
=======
When we perform a ``sudo``, we keep the same user.
But the visitor is not in the group ``base.group_user`` (he is in the group ``base.group_public``)
So, the visitor can never be in the group ``use_leads``

Fix
===
To fix it, we just need to compute the method ``has_group`` as the super user (which is in the group ``base.group_user``).
```
self.with_user(SUPERUSER_ID).env['res.users'].has_group('crm.group_use_lead')
```

Task #2124421

closes odoo/odoo#40418

X-original-commit: 8758bdc24297032ba8fd65f637a6990c6351dd27
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/website_crm/models/crm_lead.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo import api, fields, models
+from odoo import api, fields, models, SUPERUSER_ID
 
 
 class Lead(models.Model):
@@ -49,6 +49,7 @@ class Lead(models.Model):
                             request.website.crm_default_team_id.id
         values['user_id'] = values.get('user_id') or \
                             request.website.crm_default_user_id.id
+        values['type'] = 'lead' if self.with_user(SUPERUSER_ID).env['res.users'].has_group('crm.group_use_lead') else 'opportunity'
         return values