fix: export GraphQLResponse type as part of the public API (#636)

Closes #635

Author: jonkoops

src/index.ts

@@ -13,6 +13,7 @@ import type {
   BatchRequestDocument,
   FetchOptions,
   GraphQLClientResponse,
+  GraphQLResponse,
   HTTPMethodInput,
   JsonSerializer,
   MaybeLazy,
@@ -673,6 +674,7 @@ export {
   BatchRequestsOptions,
   ClientError,
   GraphQLClient,
+  GraphQLResponse,
   rawRequest,
   RawRequestExtendedOptions,
   RawRequestOptions,