Make znode ctime and mtime consistent in ClickHouse Keeper

Why it matters

This feature ensures that the creation time (ctime) and modification time (mtime) of znodes are synchronized and consistent between different ClickHouse Keeper servers. This consistency helps maintain data integrity and reliable state tracking in distributed ClickHouse Keeper environments.

How to use it

The consistency improvement is applied internally in ClickHouse Keeper and requires no user intervention or configuration. Users benefit automatically when running ClickHouse Keeper with this update.