update changelog

Author: jbaxleyiii

CHANGELOG.md

@@ -25,8 +25,8 @@
 - `vscode-apollo`
   - <First `vscode-apollo` related entry goes here>
 
-## `apollo@2.27.1-alpha.0`
-- `apollo@2.27.1-alpha.0`
+## `apollo@2.27.2`
+- `apollo@2.27.2`
     - Setup automatically creating a GitHub release [#1876](https://github.com/apollographql/apollo-tooling/pull/1876)
 
 ## `apollo@2.27.0`