Updated the changelog format (#600)

nit

Author: jprakash-db

CHANGELOG.md

@@ -2,12 +2,12 @@
 
 # 4.0.4 (2025-06-16)
 
-- Update thrift client library after cleaning up unused fields and structs (databricks/databricks-sql-python/pull/553 by @vikrantpuppala)
-- Refactor decimal conversion in PyArrow tables to use direct casting (databricks/databricks-sql-python/pull/544 by @jayantsing-db)
-- Fix: `fetchall_arrow` to always return results in `arrow` format (databricks/databricks-sql-python/pull/551 by @shivam2680)
-- Enhance cursor close handling and context manager exception management to prevent server side resource leaks (databricks/databricks-sql-python/pull/554 by @madhav-db)
-- Added additional logging to enhance debugging (databricks/databricks-sql-python/pull/556 by @saishreeeee)
-- Feature: Added support for complex data types such as Arrays and Map [Private Preview] (databricks/databricks-sql-python/pull/559 by @jprakash-db)
+- Update thrift client library after cleaning up unused fields and structs (databricks/databricks-sql-python#553 by @vikrantpuppala)
+- Refactor decimal conversion in PyArrow tables to use direct casting (databricks/databricks-sql-python#544 by @jayantsing-db)
+- Fix: `fetchall_arrow` to always return results in `arrow` format (databricks/databricks-sql-python#551 by @shivam2680)
+- Enhance cursor close handling and context manager exception management to prevent server side resource leaks (databricks/databricks-sql-python#554 by @madhav-db)
+- Added additional logging to enhance debugging (databricks/databricks-sql-python#556 by @saishreeeee)
+- Feature: Added support for complex data types such as Arrays and Map [Private Preview] (databricks/databricks-sql-python#559 by @jprakash-db)
 
 # 4.0.3 (2025-04-22)