v0.6.1 — Upgrade dldb dependency to v1.1.2

Changes

• Upgrade the dldb dependency from dldb-v1.1.0 to dldb-v1.1.2.
• Include the dldb fix for Persisting Issue #101, which reuses a single catalog snapshot during cold multi-partition HASH/VALUE filters and removes the previous N+1 list_tables() behavior.
• Update installation documentation and runtime compatibility notes.

Compatibility

• No wt-sdk public API changes.
• Existing dldb/LanceDB access continues to go through dldb.
• Requires the dependency versions declared by dldb-v1.1.2:
  • Python 3.10–3.12
  • LanceDB 0.34.x
  • pylance 9.x
  • pandas 2.3.x
  • PyArrow 21–23

Validation

• wt-sdk dldb compatibility tests: 3 passed.
• dldb catalog-listing regression tests: 2 passed.
• Cold HASH filter catalog discovery was verified to use a single list_tables() call.
• A real v2_landing_test cold query completed with one catalog listing. Full legacy landing_test validation remains subject to existing S3 fragment availability.