type: 'null' generates invalid zod client

[canvural]

What are the steps to reproduce this issue?

1. Given the following schema

foo:
  type: 'null'

2. Orval generates a zod client that contains zod.mixed()
3. which causes type error Property 'mixed' does not exist on type 'typeof import("node_modules/zod/lib/external")'

But using type: ['null'] does not cause the error. So not really sure if it is a bug or I'm misusing something 🤔

What happens?

Causes type error Property 'mixed' does not exist on type 'typeof import("node_modules/zod/lib/external")'

What were you expecting to happen?

No error.

Any logs, error output, etc?

Property 'mixed' does not exist on type 'typeof import("node_modules/zod/lib/external")'

Any other comments?

Issue seems to come from here.

What versions are you using?

Operating System: …
Package Version: 6.25.0
Browser Version: …