Update changelog for cancellation fix

Author: markcowl

src/ResourceManager/Profile/ChangeLog.md

@@ -19,6 +19,7 @@
 -->
 ## Current Release
 * Fix issue where version 10.0.3 of Newtonsoft.Json wasn't being loaded on module import
+* Retry TaskCanceledException appropriately when connections are left open.
 
 ## Version 5.1.0
 * Fix issue where running `Clear-AzureRmContext` would keep an empty context with the name of the previous default context, which prevented the user from creating a new context with the old name