Require Jenkins 2.452.4

[jonesbusy]

Require Jenkins 2.452.4

Over 80% of installations of the last two releases are already on Jenkins 2.452.4 or newer.

Testing done

Automated tests only

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[MarkEWaite]

Thanks!