[Feature Request] Add a cron job to delete staff logs older than 6 months

[Saterz]

Is your feature request related to a problem? Please describe.
If nothing is done the staff_logs table size growth could become exponential and take a lot of storage for little utility as we can say that logs more than 6 months old would become irrelevant/

Describe the solution you'd like
To delete logs older than 6 months

Describe alternatives you've considered
None

Additional context
None