Bump zod from 3.25.76 to 4.4.3

Bumps [zod](https://github.com/colinhacks/zod) from 3.25.76 to 4.4.3.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v3.25.76...v4.4.3)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.4.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

eval/package.json

@@ -71,7 +71,7 @@
     "@actions/github": "^6.0.0",
     "@braintrust/core": "^0.0.34",
     "braintrust": "^0.0.124",
-    "zod": "^3.23.4"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@jest/globals": "^29.7.0",