Fix issues with loading schemas from code-files (#242)

Author: dotansimha

.changeset/eleven-crabs-lick.md

@@ -0,0 +1,5 @@
+---
+'@graphql-eslint/eslint-plugin': patch
+---
+
+Fix issues with loading schemas from code-files

packages/plugin/src/schema.ts

@@ -1,3 +1,4 @@
+import { CodeFileLoader } from '@graphql-tools/code-file-loader';
 import { GraphQLFileLoader } from '@graphql-tools/graphql-file-loader';
 import { JsonFileLoader } from '@graphql-tools/json-file-loader';
 import { loadSchemaSync } from '@graphql-tools/load';
@@ -23,6 +24,7 @@ export const schemaLoaders: Loader<string, SingleFileOptions>[] = [
   new GraphQLFileLoader(),
   new JsonFileLoader(),
   new UrlLoader(),
+  new CodeFileLoader(),
 ];
 
 export function getSchema(options: ParserOptions, gqlConfig: GraphQLConfig): GraphQLSchema | null {