docs: add duckdb default precision

docs/website/docs/dlt-ecosystem/destinations/duckdb.md

@@ -84,7 +84,7 @@ to disable tz adjustments.
 
 `duckdb` supports various [timestamp types](https://duckdb.org/docs/sql/data_types/timestamp.html). These can be configured using the column flags `timezone` and `precision` in the `dlt.resource` decorator or the `pipeline.run` method.
 
-- **Precision**:  supported precision values are 0, 3, and 9 for fractional seconds. Note that `timezone` and `precision` cannot be used together; attempting to combine them will result in an error.
+- **Precision**:  supported precision values are 0, 3, 6, and 9 for fractional seconds. Note that `timezone` and `precision` cannot be used together; attempting to combine them will result in an error.
 - **Timezone**:
   - Setting `timezone=False` maps to `TIMESTAMP`.
   - Setting `timezone=True` (or omitting the flag, which defaults to `True`) maps to `TIMESTAMP WITH TIME ZONE` (`TIMESTAMPTZ`).