Users can now ask for a refund from Odoo for their transactions done
through Authorize.net. A refund will be triggered from Odoo when
necessary.
Only full refunds are possible.
Note that unsettled transactions will be voided as they cannot be
refunded.
Task - 2678757
closesodoo/odoo#92279
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>