add changelog

CHANGELOG.md

@@ -11,6 +11,9 @@
 - Add support for `on_schema_change` config in incremental models: `ignore`, `fail`, `append_new_columns`. For `sync_all_columns`, removing columns is not supported by Apache Spark or Delta Lake ([#198](https:/dbt-labs/dbt-spark/issues/198), [#226](https:/dbt-labs/dbt-spark/issues/226), [#229](https:/dbt-labs/dbt-spark/pull/229))
 - Add `persist_docs` call to incremental model ([#224](https:/dbt-labs/dbt-spark/issues/224), [#234](https:/dbt-labs/dbt-spark/pull/234))
 
+### Under the hood
+- Add support for structured logging [#251](https:/dbt-labs/dbt-spark/pull/251)
+
 ### Contributors
 - [@binhnefits](https:/binhnefits) ([#234](https:/dbt-labs/dbt-spark/pull/234))