* [CI] Do not require version bump when linting
* Fix formatting
### Motivation
With #292, we made the lint CI step require chart version bumps. That is an unnecessary requirement since we have a manual release process. Also, we didn't require it previously.
### Modifications
* Disable chart version bump
### Verifying this change
This is a trivial change.
Relates to: https://github.com/apache/pulsar-helm-chart/issues/290
### Motivation
We should not use GitHub Actions to release the helm chart. As such, we can remove the relevant workflow code from this repo while we build the relevant process to officially release the helm chart.
The main risk with this kind of change is that we won't have a way to "release" the chart. However, it is relevant to point out that we have not had any official releases of the chart given that the PMC has not been voting on the releases. I think we need to prioritize fixing this process as a community.
### Modifications
* Remove all scripts and configuration files that enabled GitHub Actions to release the helm chart.
### Verifying this change
This is a trivial change.
* Fix "unknown apiVersion: kind.sigs.k8s.io/v1alpha3"
*Motivation*
The api version `kind.sigs.k8s.io/v1alpha3` is not available anymore for kind clusters.
So all the CI actions are broken now. This PR fix the issue.
Additionally it adds a helm chart lint job to lint the chart changes.
* Trigger CI when kind cluster build script is changed
