jskoll

When running validate on the 4.0 spec files it fails with the error ``` openapi-generator validate -i spec/Looker.4.0.oas.json Validating spec (spec/Looker.4.0.oas.json) Errors: - attribute paths.'/models/{model_name}/views/{view_name}/fields/{field_name}/suggestions'(get).parameters.[filters].additionalProperties is unexpected [error] Spec has...