[FIX] fix security issue on account_invoice

This fix seems ugly, but I cant figure why I've a security error when an invoice is  displayed for a user without right on credit_control despite the attribute 'groups' declared on the field definition in the form view

account_credit_control/invoice.py

@@ -34,6 +34,9 @@ class AccountInvoice(models.Model):
              "setting.",
         readonly=True,
         copy=False,
+        groups="account_credit_control.group_account_credit_control_manager,"
+               "account_credit_control.group_account_credit_control_user,"
+               "account_credit_control.group_account_credit_control_info",
     )
 
     credit_control_line_ids = fields.One2many(