Apply suggested fix to CHANGELOG.md from Copilot Autofix

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

Author: nijel

CHANGELOG.md

@@ -137,7 +137,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Changed
 
 - SteamOpenId validation of identify URL
-- Box state redirestion
+- Box state redirection
 - The `uid` is automatically converted to string in the pipeline
 - Mediawiki error handling