chore: Add missed CHANGELOG item for Delayed Job in v0.13.0. Refer to PR #562 (#590)

Co-authored-by: Francis Bogsanyi <[email protected]>

Author: johnnyshields

instrumentation/delayed_job/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ### v0.13.0 / 2021-01-29
 
-* (No significant changes)
+* FIXED: Coerce message ID to string in span payload
 
 ### v0.12.0 / 2020-12-24