Review sidekiq alerts for error ratio and apdex

The alerts for apdex and error ratio for Sidekiq should be reviewed. Right now, there are situations where a large number of errors (for example), will not generate any pages. We should see what our current alerting strategy is and adjust it if needed.

Consider using slack alerts in these adjustments if the EOC will get hit with many un-actionable notifications that are depending on ongoing sidekiq improvements.