Update changelog

Author: OlivierNicole

CHANGES.md

@@ -9,6 +9,7 @@
 * Runtime: refactor caml_xmlhttprequest_create implementation (#1846)
 * Runtime: update constant imports to use `node:fs` module (#1850)
 * Runtime: make Obj.dup work with floats and boxed numbers (#1871)
+* Compiler: improve performance of Javascript linking
 
 ## Bug fixes
 * Runtime: fix path normalization (#1848)