fix(deps): update dependency zod to v4.2.1 (#207)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -127,7 +127,7 @@
     "minimatch": "10.1.1",
     "tinybench": "6.0.0",
     "yargs": "18.0.0",
-    "zod": "4.2.0"
+    "zod": "4.2.1"
   },
   "devDependencies": {
     "@astrojs/mdx": "4.3.13",