fix(cron): fix cron job not running (#31)

the job not auto running by default

Author: colinaaa

Back/task.ts

@@ -6,7 +6,8 @@ import {getUser} from './utils/getUser'
 const task =
     async () => {
   try {
-    new CronJob('0 0 * * 0', async () => { await getUser(); })
+    const job = new CronJob('0 0 * * 0', async () => { await getUser(); })
+    job.start();
   } catch (error) {
     console.log(error);
   }