chore(deps): update devdependency @nuxt/test-utils to v3.21.0 (#79)

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

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "vue-sonner": "^2.0.0"
   },
   "devDependencies": {
-    "@nuxt/test-utils": "3.20.1",
+    "@nuxt/test-utils": "3.21.0",
     "@playwright/test": "1.52.0",
     "@vue/test-utils": "2.4.6",
     "eslint": "9.39.1",