[FIX] note: fix follower assignation permissions

- Have a standard V13 with note
- Connect as Admin A
- Create User U1 and U2 with password and email on partner
- As A, create a note N
- Add U1 as a follower
- Login as U1
- Open N and add U2 as a follower

We have a custom record rule that provide access to notes if
you are in the "message_partner_ids" of the Notes.
An override to the field in notes to compute as sudo fix the issue

opw-2223632

closes odoo/odoo#51082

X-original-commit: e1fbac466ff6c3abfd0de5760f43a3ff2e5cdb90
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/note/models/note.py

@@ -52,6 +52,14 @@ class Note(models.Model):
     date_done = fields.Date('Date done')
     color = fields.Integer(string='Color Index')
     tag_ids = fields.Many2many('note.tag', 'note_tags_rel', 'note_id', 'tag_id', string='Tags')
+    message_partner_ids = fields.Many2many(
+        comodel_name='res.partner', string='Followers (Partners)',
+        compute='_get_followers', search='_search_follower_partners',
+        compute_sudo=True)
+    message_channel_ids = fields.Many2many(
+        comodel_name='mail.channel', string='Followers (Channels)',
+        compute='_get_followers', search='_search_follower_channels',
+        compute_sudo=True)
 
     @api.depends('memo')
     def _compute_name(self):