chore(deps): update devdependency @nuxt/test-utils to v3.20.1

Author: renovate[bot]

package.json

@@ -21,7 +21,7 @@
     "test:unit": "vitest run --dir packages"
   },
   "devDependencies": {
-    "@nuxt/test-utils": "3.19.2",
+    "@nuxt/test-utils": "3.20.1",
     "@nuxtjs/eslint-config-typescript": "12.1.0",
     "@types/semver": "7.7.1",
     "changelogen": "0.6.2",