docs: update changelog

Author: kazupon

CHANGELOG.md

@@ -4,6 +4,12 @@ This changelog is generated by [GitHub Releases](https://github.com/intlify/vue-
 
 <!-- Release notes generated using configuration in .github/release.yml at v10.0.6 -->
 
+## What's Changed
+
+### 🔒 Security Fixes
+
+- fix: prototype pollution in `handleFlatJson`, about details see https://github.com/intlify/vue-i18n/security/advisories/GHSA-p2ph-7g93-hw3m
+
 **Full Changelog**: https://github.com/intlify/vue-i18n/compare/v10.0.5...v10.0.6
 
 # v10.0.5 (2024-11-28T05:11:23Z)