chore: Update RC hotfix changelog (#27900)

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## **Description**

Updates the hotfix RC changelog to mention the PR that was picked into
the RC.

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ## [12.4.2]
+### Fixed
+- Fix a problem where certain name lookup Snaps would not be triggered ([#27880](https://github.com/MetaMask/metamask-extension/pull/27880))
 
 ## [12.4.1]
 ### Fixed