update CHANGELOG.md

Author: BentsiLeviav

CHANGELOG.md

@@ -8,7 +8,6 @@
 * Removed support in python 3.8 as it is no longer supported by dbt ([#402](https://github.com/ClickHouse/dbt-clickhouse/pull/402)
 
 ### Bug Fixes
-* Remove python 3.8 leftovers from the project ([#402](https://github.com/ClickHouse/dbt-clickhouse/pull/402))
 * Fix a minor bug related to validating existence of an old hanging mv ([#396]()) 
 
 ### Release [1.8.6], 2024-12-05