Changes to Start an integration connect session

added the new optional request property api

added the new optional request property auth_type

the request property vendor became optional

request property vendor list-of-types was widened by adding types null to media type application/json

added the non-success response with the status 404

added the non-success response with the status 409

added the non-success response with the status 429

added the new optional request property name

added the new optional request property oauth_app_registration_id

endpoint added