`process_orchestration` raises ValidationError of pydantic

Hi, when I try to do orchestration of a service, I get a ValidationError of pydantic. When I debug the code step by step, I realize that `authenticationInfo` couldn't get from core service Orchestration. It's actually null in the database and this doesn't cause an error in Java client. However when I debug and I even change the provider value orchestration response as `authenticationInfo = null`, error continue. Finally, I changed the provider value of orchestration response as `authenticationInfo = ""` and it was fixed. Even provider `authenticationInfo` is nonrequired, `process_orchestration` raises error. I'm sharing debugging screenshots.

`authenticationInfo` is returned from core service Orchestration and there is no exception in Java client
`authenticationInfo` couldn't get from service Orchestration
`authenticationInfo` couldn't get from service Orchestration and error raised from pydantic like below
`authenticationInfo` couldn't get from service Orchestration and I added it as null but error raised from pydantic like below,

Traccia la gestione della orchestration response da parte di process_orchestration, concentrandoti su authenticationInfo e sulla validazione Pydantic mostrata nel report. Riproduci il caso con valore null e confrontalo con il caso della stringa vuota; il lavoro è completato quando un authenticationInfo opzionale con valore null non genera più ValidationError.

Scritto dal modello di indicizzazione a partire dal testo della issue.