Bump zod from 4.1.8 to 4.1.12

Bumps [zod](https://github.com/colinhacks/zod) from 4.1.8 to 4.1.12.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v4.1.8...v4.1.12)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.1.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]