fix(deps): allow studio v4 in peer dep ranges

[RitaDias]

Description

Prepping for July 15th: https://www.sanity.io/blog/a-major-version-bump-for-a-minor-reason#299526b398ec

Currently when using a package.json like:

Progress: resolved 1030, reused 0, downloaded 0, added 0, done
 WARN  Issues with peer dependencies found
.
└─┬ @sanity/sanity-plugin-async-list 1.3.1
  └── ✕ unmet peer sanity@^3: found 4.0.0-0
Done in 9.4s using pnpm v10.12.1

This fixes it.

Testing

Tested locally