docs: update changelog

Author: justinanastos

CHANGELOG.md

@@ -19,7 +19,7 @@
 - `apollo-graphql`
   - <First `apollo-graphql` related entry goes here>
 - `apollo-language-server`
-  - <First `apollo-language-server` related entry goes here>
+  - Fix issue where fragment definitions only included in `@client` fields would not be stripped ((AP-682)(https://golinks.io/AP-682), [#1454](https://github.com/apollographql/apollo-tooling/pull/1454))
 - `apollo-tools`
   - <First `apollo-tools` related entry goes here>
 - `vscode-apollo`