Add missing changeset

Author: eddeee888

.changeset/lovely-snails-travel.md

@@ -0,0 +1,7 @@
+---
+'@graphql-codegen/visitor-plugin-common': major
+'@graphql-codegen/typescript-resolvers': major
+'@graphql-codegen/plugin-helpers': major
+---
+
+BREAKING CHANGE: Improve Federation Entity's resolvers' parent param type: These types were using reference types inline. This makes it hard to handle mappers. The Parent type now all comes from ParentResolverTypes to make handling mappers and parent types simpler.