Update changelog

CHANGELOG.md

@@ -7,6 +7,7 @@ All of the packages in the `apollo-server` repo are released with the same versi
 - Update `graphql-playground-html` to 1.7.4 [#1586](https://github.com/apollographql/apollo-server/pull/1586)
 - Add support for `graphql-js` v14 by augmenting typeDefs with the `@cacheControl` directive so SDL validation doesn't fail [#1595](https://github.com/apollographql/apollo-server/pull/1595)
 - Add `node-fetch` extensions typing to `RequestInit` [#1602](https://github.com/apollographql/apollo-server/pull/1602)
+- Fix `apollo-server-cloud-functions` tests [#1611](https://github.com/apollographql/apollo-server/pull/1611/)
 
 ### v2.0.5