Tweak the judge's prompt to better format response

What does this merge request do and why?

We found it better to include both the scoring of analysis and the scoring of the example fixes in one xml block.

This MR iterates towards addressing #429

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

Merge request checklist

• I've ran the affected pipeline(s) to validate that nothing is broken.
• Tests added for new functionality. If not, please raise an issue to follow up.
• Documentation added/updated, if needed.