fix build issue

[ianmacartney]

@kyldvs here's a small tactical fix, if you're willing to drop declaration from the tsconfig.

I think the future solution is to expose the type_utils from the convex package, which will take a new client release

[kyldvs]

Yup that's how I ended up fixing it. This comment has the best explanation on the issue I've seen: microsoft/TypeScript#47663 (comment)

[ianmacartney]

@kyldvs it is now fixed with [email protected] without removing the declaration from tsconfig 🎉