[FIX] mail: right user_ids when calling /mail/follow

On a SO, write a note to a user
The mail the user receives contains a follow button
Click on it

Before this commit, the link did not add the user as follower of the SO
this was because the wrong uid was passed to the function

After this commit, user is added as follower

OPW 1869849
closes #26634

addons/mail/controllers/main.py

@@ -194,7 +194,7 @@ class MailController(http.Controller):
         comparison, record, redirect = self._check_token_and_record_or_redirect(model, int(res_id), token)
         if comparison and record:
             try:
-                record.sudo().message_subscribe_users()
+                record.sudo().message_subscribe_users(user_ids=[request.uid])
             except Exception:
                 return self._redirect_to_messaging()
         return redirect