Update CHANGELOG

Author: bouwew

CHANGELOG.md

@@ -4,6 +4,7 @@ Versions from 0.40 and up
 
 ## Ongoing
 
+- Add tests for the integration default update_interval settings via PR [#994](https://github.com/plugwise/plugwise-beta/pull/994)
 - Revert exceptions-move in coordinator.py, line up with Core Plugwise via PR [#990](https://github.com/plugwise/plugwise-beta/pull/990)
 
 ## v0.62.1