build(deps): bump zod from 4.4.3 to 4.5.4

Bumps [zod](https://github.com/colinhacks/zod) from 4.4.3 to 4.5.4.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v4.4.3...v4.5.4)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.5.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]