Add new iceberg_enable_version_hint

Why it matters

This feature aims to improve the handling of Iceberg table versions by leveraging the version-hint.text file. It helps ClickHouse to more efficiently identify the correct table version, optimizing query performance and consistency when working with Iceberg tables.

How to use it

Users can enable this feature by setting iceberg_enable_version_hint to true in their ClickHouse configuration or query settings. This will instruct ClickHouse to use the version-hint.text file during Iceberg table reads.