Bump zod from 4.2.0 to 4.2.1 in the npm group (#2047)

Bumps the npm group with 1 update: [zod](https://github.com/colinhacks/zod).


Updates `zod` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.2.1
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: npm
...

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