message: Fix JSON scalars typings
diff: declare module "graphql-type-json" {
  import { GraphQLScalarType } from "graphql";
  - export const GraphQLJSON: typeof GraphQLScalarType;
  - export const GraphQLJSONObject: typeof GraphQLScalarType;
  + export const GraphQLJSON: GraphQLScalarType;
  + export const GraphQLJSONObject: GraphQLScalarType;
  }
  