register all cron jobs in entrypoint (#12791)

closes https://github.com/twentyhq/core-team-issues/issues/1113

Three things I am not sure about - 
- Should we have a variable just like DISABLE_DB_MIGRATIONS to control
cron job registration behavior, i.e., DISABLE_CRON_JOBS_REGISTRATION?
- The location of the command ie, folder placement
- https://github.com/twentyhq/twenty/pull/12791/files#r2161734131

packages/twenty-server/src/modules/workflow/workflow-trigger/automated-trigger/automated-trigger.module.ts

@@ -19,6 +19,6 @@ import { DatabaseEventTriggerListener } from 'src/modules/workflow/workflow-trig
     CronTriggerCronJob,
     CronTriggerCronCommand,
   ],
-  exports: [AutomatedTriggerWorkspaceService],
+  exports: [AutomatedTriggerWorkspaceService, CronTriggerCronCommand],
 })
 export class AutomatedTriggerModule {}