support custom SNI for SSL connection

[lucas-tubi]

Summary

support custom SNI for SSL connection

Checklist

Delete items not relevant to your PR:

• [ ] Unit and integration tests covering the common scenarios were added
• [ ] A human-readable description of the changes was provided to include in CHANGELOG
• [ ] For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[lucas-tubi]

python integration supports this, so I think java side also needs it. https://clickhouse.com/docs/en/integrations/python#httpstls-arguments