Changes to Unlink connection

the response property integrationKey became optional for the status 200

the response property dataConnectionErrors became nullable for the status 200

the response property connectionInfo became nullable for the status 200

the response property lastSync became nullable for the status 200

removed the optional property additionalProperties from the response with the 200 status

added the optional property dataConnectionErrors/items/resolvedOnUtc to the response with the 200 status

added the optional property dataConnectionErrors/items/status to the response with the 200 status

added the optional property validation to the response with the 401 status

added the optional property validation to the response with the 402 status

added the optional property validation to the response with the 403 status

added the optional property validation to the response with the 404 status

added the optional property validation to the response with the 429 status

added the optional property validation to the response with the 500 status

added the optional property validation to the response with the 503 status

added the new Expense enum value to the sourceType response property for the response status 200

added the new BankFeed enum value to the sourceType response property for the response status 200