Report pro/push exceptions to exception tracker

Ruby version: N/A Rails version: N/A Sidekiq / Pro / Enterprise version(s): Sidekiq 7.1.6 / Pro 7.1.5 / Ent 7.1.2

Hi! ❤️

Would be nice to have the exceptions that happens when jobs are pushed to the local queue reported to our exception tracker.

I would say to report when the exception happens but since it is kind of expected for pushes to fail (that's why the pro/push is designed for) we could report the exceptions during the shutdown drain only or make an option to decide if we want all or when draining at exit.

That way we get notified that we actually lost some jobs in memory.