FR: Add JSON Schema validation for charts

[thiagowfx]

Is your feature request related to a problem?

No response

Related helm chart

argo-cd, argo-events, argo-rollouts, argo-workflows, argocd-image-updater, argocd-apps

Describe the solution you'd like

Introduce a values.schema.json file for all helm charts

Docs: https://helm.sh/docs/topics/charts/#schema-files

Describe alternatives you've considered

Defining the schemas downstream

Additional context

No response

[mkilchhofer]

Xref:

• https://github.com/argoproj/argo-helm/issues/2157