Update to Cedar 4.x

[micahhausler]

Category

Cedar validation features

Describe the feature you'd like to request

I'd like the VScode plugin to support Cedar 4.x. I'd like support for new language features like schema annotations, extended has, and datetime support.

Describe alternatives you've considered

Living with red squiggly lines in my Cedar schema and policy files, even though they're valid.

Additional context

No response

Is this something that you'd be interested in working on?

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change