[bitnami/clickhouse] Allow change ClickHouse cluster name

[ss098]

Description of the change

Allow changing the name of the ClickHouse cluster via Helm value.

Benefits

This change enables users to customize the ClickHouse cluster name, which is particularly useful for integrating with applications like SigNoz that require a specific cluster name setup.

Possible drawbacks

Applicable issues

• Fixes issue [bitnami/clickhouse] cluster id not found #22532, which addresses the need for customizable cluster name to work with SigNoz.

Additional information

I am trying to use Bitnami ClickHouse as the External ClickHouse for SigNoz. Due to restrictions mentioned in the SigNoz documentation, I need to change the Bitnami ClickHouse's cluster name, which is currently hardcoded as default.

Distributed cluster named cluster set up required

Checklist

• Chart version bumped in Chart.yaml according to semver. This is not necessary when the changes only affect README.md files.
• Variables are documented in the values.yaml and added to the README.md using readme-generator-for-helm
• Title of the pull request follows this pattern [bitnami/<name_of_the_chart>] Descriptive title
• All commits signed off and in agreement of Developer Certificate of Origin (DCO)