chore: add extension

Author: fernando.cano

src/helpers/documentParser.ts

@@ -4,7 +4,7 @@
  *  file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 import { resolveSchemaName, parseTypes } from '.';
-import { OPEN_API_OPERATIONS } from '../const/index';
+import { OPEN_API_OPERATIONS } from '../const/index.js';
 import { DataObject, Path } from '../types';
 
 export function parseDocument(data: DataObject) {