Add CHANGELOG entry

Author: mediremi

CHANGELOG.md

@@ -14,6 +14,8 @@
 
 #### :bug: Bug fix
 
+- Fix: incorrect highlighting of `as` inside labelled arguments like `toast` https://github.com/rescript-lang/rescript-vscode/pull/1085
+
 - Fix: bug where incremental analysis does not work when the project folder contains a dot. https://github.com/rescript-lang/rescript-vscode/pull/1080
 
 - Fix: bug where incremental compilation crashes when rewatch is being run in a specific package vs the root of the monorepo. https://github.com/rescript-lang/rescript-vscode/pull/1082