title: Firebase Pub/Sub trigger multiple jobs with messages at once
body: <p>I am running a cronjob every evening to send notifications to a set of users in my database, call them 1-100. However, recently with an increase in my users, it's taking longer and longer for this job to run. Is there a way to have the pub/sub topic trigger multiple jobs, say triggering one job to handle users 1-50, and another to handle users 51-100? </p>