changelog: add notes about closing #14167

CHANGELOG.md

 # 5.4.0 (unreleased)
 
 * **Cloudwatch**: Fix invalid time range causes segmentation fault [#14150](https://github.com/grafana/grafana/issues/14150)
+* **Cloudwatch**: AWS/CodeBuild metrics and dimensions [#14167](https://github.com/grafana/grafana/issues/14167), thx [@mmcoltman](https://github.com/mmcoltman)
 
 ### 5.4.0-beta1 fixes
 * **Graph**: Fix legend always visible even if configured to be hidden [#14144](https://github.com/grafana/grafana/issues/14144)