Update CHANGELOG.md

Co-authored-by: Christian Adell <chadell@gmail.com>

Author: Kircheneer

CHANGELOG.md

@@ -8,7 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### Changed
 
-- #276 - Removed upper version boud for `structlog` dependency
+- #276 - Removed upper version bound for `structlog` dependency
 
 ### Fixed