Bump DuckDB wrapper in DuckDB provider from 1.2.1 → 1.4.x for major performance & stability improvements

**Summary**
The DuckDB provider currently ships with a DuckDB wrapper pinned at `1.2.1`, which pulls in an older DuckDB engine. DuckDB 1.4.x brings **built-in encryption support**, many **new features**, and **significant performance improvements**. Upgrading the wrapper to `1.4.x` would meaningfully improve the provider’s capabilities and user experience.

**Current Behavior**

* DuckDB wrapper version: **1.2.1**
* Result: Provider uses an outdated DuckDB engine, missing recent optimizer and execution improvements, security features (encryption), and new SQL capabilities.