Fix trailing whitespace in CHANGELOG

Co-authored-by: SimplyDanny <16365760+SimplyDanny@users.noreply.github.com>

Author: Copilot

CHANGELOG.md

@@ -13,7 +13,7 @@
 ### Enhancements
 
 * Refactor GitHub workflow files to use YAML anchors for common patterns,
-  reducing duplication and improving maintainability.  
+  reducing duplication and improving maintainability.
   [SimplyDanny](https://github.com/SimplyDanny)
 
 ### Bug Fixes