Yarn 4 support

Yarn 4 support

Unfortunately even with corepack, yarn 4 still doesn't work: https://community.vercel.com/t/error-dynamic-require-of-util-is-not-supported/449, you are still subject to the list of...

Yarn 4 support

It would be really great to have yarn 4 support in Vercel. Currently our project only needs it for static builds, but ideally it would be fully supported. Yarn is a very popular...