When saving a payment method from the `my/payment_method` page validation is used as the type of operation. In the present validation operations were incorrectly filtered and treated as a payment. After this commit validation operations are processed in the `_stripe_create_checkout_session` function as it should. Task - 3001168 closes odoo/odoo#101923 X-original-commit: 7f371db1af160a5e89f9476540aee35f79769068 Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>