helm-v1.0.2: Cron Job Parameters

Contributed by @xavidop

Adds the following values:

cronjob:
  # the schedule of the cronjob
  schedule: "0 */6 * * *"

  # Success job history limit 
  successfulJobsHistoryLimit: 3

  # Failed job history limit 
  failedJobsHistoryLimit: 5
  
  # The deadline afterwhich running the cronJob will be skipped. See https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/#cron-job-limitations for defaults and details.
  startingDeadlineSeconds: null

  # Termination grace period Seconds 
  terminationGracePeriodSeconds: 0

Thanks to @KaKeimei and @wokes for the fixes in chart version 1.0.5