Ensure HTTP errors in web hook logic are reported
Created by: adipasquale
followup to #913 @guillett
we need to fix sentry integration weird encoding pb
Bogus response payload:
OutgoingWebhookError (Webhook failed with status code 500 and body {"Signature":true,"Erreur":"Une exception a été levée par l'initialiseur de type pour 'Cd62.Fwk.Fondamentaux.Ldap.Dal.ActiveDirectory.Impl.Helpers'."})