chore(deps-dev): bump zod from 3.25.76 to 4.1.12

Bumps [zod](https://github.com/colinhacks/zod) from 3.25.76 to 4.1.12.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v3.25.76...v4.1.12)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.1.12
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/snap/package.json

@@ -121,7 +121,7 @@
     "type-fest": "^5.1.0",
     "typescript": "5.9.3",
     "viem": "^2.38.5",
-    "zod": "^3.25.0"
+    "zod": "^4.1.12"
   },
   "peerDependencies": {
     "iso-filecoin": "7.x"