docs: update changelog

Author: glennsl

CHANGELOG.md

@@ -15,6 +15,7 @@
 #### :bug: Bug Fix
 
 - Fix making the static import for the dynamic import of external ffi https://github.com/rescript-lang/rescript-compiler/pull/6664
+- Fix local type variables breaking react components. https://github.com/rescript-lang/rescript-compiler/pull/6665
 
 #### :nail-care: Polish