feat: add a keep-alive cron for workers that runs every minute

src/jobs/keep-alive.ts

@@ -0,0 +1,11 @@
+import { schedules } from '@trigger.dev/sdk/v3'
+
+export const keepAlive = schedules.task({
+  id: 'keep-alive',
+  maxDuration: 10,
+  cron: '* * * * *',
+  run: async () => {
+    // This task does nothing except warm up our workers and ensure it stays active.
+    return { message: 'Worker is warm' }
+  },
+})