fix(deps): update nuxtjs monorepo to v4

Author: renovate[bot]

packages/docs/package.json

@@ -20,7 +20,7 @@
     "@nuxtjs/mdc": "0.17.4",
     "@unocss/nuxt": "0.65.4",
     "gh-pages": "6.3.0",
-    "nuxt": "3.17.7",
+    "nuxt": "4.1.2",
     "vitest": "3.2.4",
     "zx": "8.8.1"
   }

packages/playground-nuxt/package.json

@@ -10,7 +10,7 @@
     "postinstall": "nuxt prepare"
   },
   "devDependencies": {
-    "nuxt": "3.17.7",
+    "nuxt": "4.1.2",
     "vue": "3.5.21",
     "vue-router": "4.5.1"
   },

packages/vue-recaptcha/package.json

@@ -68,8 +68,8 @@
     }
   },
   "dependencies": {
-    "@nuxt/kit": "^3.9.1",
-    "@nuxt/schema": "^3.9.1",
+    "@nuxt/kit": "^4.0.0",
+    "@nuxt/schema": "^4.0.0",
     "@vueuse/shared": "^10.7.2",
     "defu": "^6.1.4",
     "p-defer": "^4.0.1",