[Improvement] Allow setting schema version from the helm chart

[13sh]

What would you like to be improved?

Currently you can't enable view support when deploying with helm since setting gravitino.iceberg-rest.jdbc.schema-version is not supported in the conf file

How should we improve?

support can be added similar to what is being used with gravitino.iceberg-rest.jdbc-initialize:

{{- if .Values.icebergRest.jdbc.schemaVersion }}
gravitino.iceberg-rest.jdbc.schema-version={{.Values.icebergRest.jdbc.schemaVersion}}
{{- end }}

I tried to create a PR but its not allowed without sending an email to become a contributor first

[HaJunYoo]

Hi @13sh, if you don't mind, can I be assigned to this?

[13sh]

Hi @HaJunYoo I don't mind but I'm not one of the maintainers of the project