[Resources] Update ChangeLog.md (#25387)

* Update ChangeLog.md

* Update ChangeLog.md

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Co-authored-by: Yeming Liu <[email protected]>

Author: NoriZC

src/Resources/Resources/ChangeLog.md

@@ -19,6 +19,7 @@
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 ## Upcoming Release
+* Addressed a rare case where a service principal does not have AppId
 * Introduced validation of MG scoped deployment stack during New/Set cmdlet execution.
 * Updated Remove/New stack cmdlets with warnings for management groups ActionOnUnmanage and removed DeleteResourcesAndResourceGroups as valid ActionOnUnmanage value.
 * Supported get and assign versioned policy definitions and sets