[FIX] payment_authorize: save payment token from form validated transaction

https://docs.python.org/3/library/stdtypes.html#truth
By default, an object is considered true unless
its class defines either a __bool__() method that returns False
or a __len__() method that returns zero

Since etree elements are iterator, they define a len function.
However it turns out that customerProfileId has always no children.
So bool(find(x)) is always False; the intended meaning was find(x) is None.

opw 1999427

closes odoo/odoo#34922

Signed-off-by: Nans Lefebvre (len) <len@odoo.com>

addons/payment_authorize/models/authorize_request.py

@@ -226,7 +226,7 @@ class AuthorizeAPI():
         etree.SubElement(customer, "email").text = partner.email or ''
         response = self._authorize_request(root)
         res = dict()
-        if not response.find('customerProfileId'):
+        if response.find('customerProfileId') is None:  # Warning: do not use bool(etree) as the semantics is very misleading
             _logger.warning(
                 'Unable to create customer payment profile, data missing from transaction. Transaction_id: %s - Partner_id: %s'
                 % (transaction_id, partner)