fix: probot default export

Author: codebytere

src/index.ts

@@ -10,7 +10,7 @@ import { handleChromiumCheck } from './chromium-handler';
 import { handleBuildImagesCheck } from './build-images-handler';
 import { ROLL_TARGETS } from './constants';
 
-export const handler = (robot: Probot) => {
+const handler = (robot: Probot) => {
   robot.on('pull_request.closed', async (context: Context) => {
     const d = debug('roller/github:pull_request.closed');
 
@@ -97,3 +97,5 @@ export const handler = (robot: Probot) => {
     }
   });
 };
+
+module.exports = handler;

tests/build-images.test.ts

@@ -1,4 +1,4 @@
-import { handler } from '../src/index';
+import handler from '../src/index';
 import { beforeEach, afterEach, describe, it, vi, expect } from 'vitest';
 import * as buildImagesHandler from '../src/build-images-handler';
 import { getOctokit } from '../src/utils/octokit';