**Describe the feature** It would be nice to add a [values.schema.json](https://helm.sh/docs/faq/changes_since_helm2/#validating-chart-values-with-jsonschema) after the [JSON schema deprecated flag ](http://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.3)feature becomes [supported](https://github.com/helm/helm/issues/10732) in Helm (looks like [this PR ](https://github.com/helm/helm/pull/11340)needs to be merged for the json schema dependency to be updated in Helm). **Is the feature request related to a problem?** Just a nice way to report warnings about deprecated fields.