fix(deps): update dependency zod to v4

Author: renovate[bot]

package.json

@@ -28,7 +28,7 @@
     "nearley": "2.20.1",
     "yaml": "2.8.1",
     "yargs": "18.0.0",
-    "zod": "3.25.76"
+    "zod": "4.2.1"
   },
   "devDependencies": {
     "@octokit/types": "13.10.0",

yarn.lock

@@ -4128,7 +4128,7 @@ yocto-queue@^0.1.0:
   resolved "https://registry.yarnpkg.com/yocto-queue/-/yocto-queue-0.1.0.tgz#0294eb3dee05028d31ee1a5fa2c556a6aaf10a1b"
   integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==
 
-zod@3.25.76:
-  version "3.25.76"
-  resolved "https://registry.yarnpkg.com/zod/-/zod-3.25.76.tgz#26841c3f6fd22a6a2760e7ccb719179768471e34"
-  integrity sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==
+zod@4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-4.2.1.tgz#07f0388c7edbfd5f5a2466181cb4adf5b5dbd57b"
+  integrity sha512-0wZ1IRqGGhMP76gLqz8EyfBXKk0J2qo2+H3fi4mcUP/KtTocoX08nmIAHl1Z2kJIZbZee8KOpBCSNPRgauucjw==