Add Support for exporting metrics in GoFr Cron Jobs

[coolwednesday]

Cron jobs Metrics

• app_cron_job_duration (histogram)
• app_cron_job_total (counter)
• app_cron_job_success (counter)
• app_cron_job_failures (counter)

Kind of metrics to expose are open to discussion.

[iyashjayesh]

Hi @coolwednesday, I'd like to work on this feature. Could you please assign it to me?

I have experience with similar implementations, I recently worked on a related PR for gocron: go-co-op/gocron#889

I'd appreciate any guidance or pointers before I start working on it. Thanks!

[coolwednesday]

Hey @iyashjayesh, Sure you can start working on this ...Major acrchitectural code designs if you are going to take please add them here first.