docs: update changelog

Note the fix for parsing inline comments.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

docs/changelog.md

@@ -37,6 +37,7 @@ The format is based on [Keep a Changelog].
   transition.
 - **klippy_connection**:  Fixed a race condition that can result in
   skipped subscription updates.
+- **configheler**: Fixed inline comment parsing.
 
 ### Changed