Update workers usage of Time.now => Time.current

What does this MR do?

Continues #216527 (closed).

This changes the time usage in workers to the correct format (Time.current vs Time.now).

Previously we used Time.now which does not respect the instances' set timezone.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content