Add config to change the pipeline controller cron schedule timezone

[machariamuguku]

• We couldn't find a config to change the cron schedule timezone.
• We would like an option to change the timezone to our local timezone.
  • E.g to "Africa/Nairobi" or GMT+3

[bashir2]

Just to clarify, the cron schedule is currently based on the local time of the machine on which the controller runs; we can certainly add timezone too.