Description

Schema updates as part of #37735 for the core/archives block

Types of changes

Schema changes to theme.json

This was tested by setting the $shema value to this file in a local theme.json file.

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• I've tested my changes with keyboard and screen readers.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).