Remove extra > which shows in the built schemas

[guyzyl]

Committer Notes

In the assessment-result metaschema there's an extra closing triangle bracket (>) that shows up in the built schemas.
You can see one example of it in the jsonschema.

All Submissions:

• Have you selected the correct base branch per Contributing guidance?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you squashed any non-relevant commits and commit messages? [instructions]
• Do all automated CI/CD checks pass?

[david-waltermire]

Thanks!

The base branch was changed.