Show keep path even for expired locked artifacts

What does this MR do?

Shows the keep_path for artifacts if they have an expiry date even when they're locked.

Does this MR meet the acceptance criteria?

Conformity

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