## Bug description

Some instances sent instance status report thousands of times. I bet it's because of Celery retrying or something, as some of the queries are using COUNT(*) and can be very slow. We should use estimated row sizes instead probably.

## Expected behavior

Only sent 1 instance report per team

## How to reproduce

1. 
2. 
3. 

## Environment

- PostHog cloud or self-managed?
- PostHog version/commit

## Additional context



#### *Thank you* for your bug report – we love squashing them!

posthog/celery.py
if not settings.DEBUG:
        sender.add_periodic_task(1.0, redis_celery_queue_depth.s(), name="1 sec queue probe", priority=0)
    
    sender.add_periodic_task(10.0, redis_heartbeat.s(), name="10 sec heartbeat", priority=0)
    
    sender.add_periodic_task(
        crontab(day_of_week="mon,fri"), update_event_partitions.s(),  
    )
    if getattr(settings, "MULTI_TENANCY", False) or os.environ.get("SESSION_RECORDING_RETENTION_CRONJOB", False):
        sender.add_periodic_task(crontab(minute=0, hour="*/12"), run_session_recording_retention.s())
    
    if not getattr(settings, "MULTI_TENANCY", False):
        sender.add_periodic_task(crontab(day_of_week="mon"), status_report.s())