Changes to Update Contacts

the request property updateMask became not nullable

the contacts request property type changed from object to no type

added c1.api.settings.v1.Contacts subschema #2 to the contacts response property oneOf list for the response status 200

the contacts response's property type changed from object to no type for status 200

removed the request property contacts/billingEmails

removed the request property contacts/operationsEmails

removed the request property contacts/securityEmails

removed the optional property contacts/billingEmails from the response with the 200 status

removed the optional property contacts/createdAt from the response with the 200 status

removed the optional property contacts/operationsEmails from the response with the 200 status

removed the optional property contacts/securityEmails from the response with the 200 status

removed the optional property contacts/updatedAt from the response with the 200 status

added c1.api.settings.v1.Contacts subschema #2 to the contacts request property oneOf list

endpoint added