Add support for macro expansion in remote_fs_zero_copy_zookeeper_path

Why it matters

This feature enables users to use macros within the remote_fs_zero_copy_zookeeper_path configuration, allowing more flexible and dynamic path definitions in Zookeeper-related zero-copy filesystem operations. It simplifies configuration management and enhances adaptability in distributed ClickHouse environments.

How to use it

Define macros as needed and include them in the remote_fs_zero_copy_zookeeper_path setting. At runtime, the macros will be expanded automatically, allowing dynamic resolution of the path components.