Update changelog

Author: estruyf

CHANGELOG.md

@@ -2,14 +2,10 @@
 
 ## [10.5.1] - 2024-10-23
 
-### ✨ New features
-
 ### 🎨 Enhancements
 
 - [#873](https://github.com/estruyf/vscode-front-matter/issues/873): Add retry logic to get the AI model for calling GitHub Copilot
 
-### ⚡️ Optimizations
-
 ### 🐞 Fixes
 
 - [#872](https://github.com/estruyf/vscode-front-matter/issues/872): Check the default field value as well for the field's `when` clause