Improve the scripts/review_apps/automated_cleanup.rb script

What does this MR do?

1. We now sort deployments by desc
2. We only check deployments created in the last days_for_delete * 5 days.
3. A new manual:review-cleanup job was created to allow to perform the cleanup in other contexts than schedules (e.g. MRs).

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Closes #34753 (closed).