Upgrade robfig/cron Library to Support Time Zones

[yuanqijing]

Describe the problem/challenge you have

Currently, Velero uses robfig/cron library version v1.1.0 which does not support time zone specification for scheduled tasks. Upgrading to robfig/cron version v3.0.0 or higher will allow us to leverage time zone features, providing more flexibility in scheduling backups and other tasks based on different time zones.

Describe the solution you'd like

To implement this feature, the robfig/cron library should be upgraded to v3.0.0 or higher.

Anything else you would like to add:

Here's an example of how the updated cron scheduling might look with time zone support: velero schedule create NAME --schedule="CRON_TZ=Asia/Tokyo 30 04 * * *"

References: robfig/cron v3 documentation

Environment:

• Velero version (use velero version): Version: v1.13.2
• Kubernetes version (use kubectl version): v1.22.15
• Kubernetes installer & version:
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):

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[github-actions[bot]]

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[blackpiglet]

unstale