Bump zod from 3.21.4 to 3.22.3 in /blog

Bumps [zod](https://github.com/colinhacks/zod) from 3.21.4 to 3.22.3.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Changelog](https://github.com/colinhacks/zod/blob/master/CHANGELOG.md)
- [Commits](colinhacks/zod@v3.21.4...v3.22.3)

---
updated-dependencies:
- dependency-name: zod
  dependency-type: direct:production
...

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