DuckDB Async NodeJS Wrappers

duckdb-async provides Promise-based and TypeScript-first wrappers for the DuckDB NodeJS API, allowing developers to interact with DuckDB databases using modern `async/await` patterns instead of traditional callbacks. Currently at version 1.4.2, its releases have historically aligned with the `duckdb-node` module, which it depends on. A key differentiator is its comprehensive TypeScript support and the conversion of most callback-driven methods in `duckdb-node`'s `Database`, `Connection`, and `Statement` classes into promise-returning equivalents. Notably, the `Database` constructor is replaced by a static `Database.create()` factory method to accommodate async initialization. However, it's critical to note that `duckdb-async` is currently in a deprecated state; the maintainers have announced that it, along with `duckdb-node`, will not be released for DuckDB 1.5.x (~Early 2026) and subsequent versions. Users are advised to migrate to the newer `@duckdb/node-api` package for ongoing support and future compatibility.