use the Artifact Hub CLI tool (ah)

[Vad1mo]

We are using Artifact Hub annotations in Helm Chart.yaml file, however there are often some problems that cause the syntax to break. in the consequence, the chart is not displayed in artifacthub.io and is not scrapped.

In order to catch those error we can use the Artifact Hub CLI tool (ah),

ah lint -p .. can be used to lint the chart file,

it would be helpfulf if we could integrate that into the workflow here.