* Expose Worker Tokio Metrics
* Add metrics tracking the job queue
This can be used to (approximate) the queue length
This can be used to (approximate) the running jobs
* Remove testing code
* Rename metrics to exclude TOTAL_
* Sleep in worker metrics loop
* Add jobs_executed
* Add zombie job metrics
* Add uptime metric
* Fix metric naming
* Remove poll stats
* unify worker execution metrics
* Rename jobs_* metrics
* Rename metrics to match exposed name
* Remove leftover import
* Rename variables to match further
* Fix Merge error
Co-authored-by: Ruben Fiszel <ruben@rubenfiszel.com>