feat(duckdb): return the `ir.Table` instance from DuckDB's `register` API
feat(duckdb): return the `ir.Table` instance from DuckDB's `register` API

cpcloud/ibis,cpcloud/ibis,cpcloud/ibis,cpcloud/ibis,ibis-project/ibis,ibis-project/ibis,ibis-project/ibis,ibis-project/ibis