Protocol version conflict with upstream

[ianton-ru]

Describe the bug
Cluster processing protocol version (DBMS_CLUSTER_PROCESSING_PROTOCOL_VERSION) in Antalya branch is conflicting with upstream master branch.

Key information
Introduced in #1069

Used version DBMS_CLUSTER_PROCESSING_PROTOCOL_VERSION_WITH_DATA_LAKE_COLUMNS_METADATA = 3 conflicts with DBMS_CLUSTER_PROCESSING_PROTOCOL_VERSION_WITH_ICEBERG_METADATA = 3 in upstream.

Possible ways to resolve

1. Revert 25.8 Antalya ports: Read optimization using Iceberg metadata #1069
2. Return to original workaround with JSON (see Read optimization using Iceberg metadata #1019)
3. Merge feature to upstream (complete Read optimization for Iceberg tables using Iceberg metadata ClickHouse/ClickHouse#90001)