Austenem/CAT-1044 Fix missing publication dates

[austenem]

Summary

Fixes missing publication dates for datasets on Publication pages.

Design Documentation/Original Tickets

CAT-1044 Jira ticket

Screenshots/Video

Prod:

Local:

Checklist

• [X] Code follows the project's coding standards
  • [X] Lint checks pass locally
  • [X] New CHANGELOG-your-feature-name-here.md is present in the root directory, describing the change(s) in full sentences.
• [X] Unit tests covering the new feature have been added
• [X] All existing tests pass
• [X] Any relevant documentation in JIRA/Confluence has been updated to reflect the new feature
• [X] Any new functionalities have appropriate analytics functionalities added