keystar/ui peer deps warning

[stefanprobst]

with pnpm v9, i get a peer dependency warning:

 WARN  Issues with peer dependencies found
.
└─┬ @keystatic/core 0.5.13
  └─┬ @keystar/ui 0.7.2
    └── ✕ unmet peer [email protected]: found 14.2.3

probably because of https://github.com/Thinkmill/keystatic/blob/main/design-system/pkg/package.json#L1578