chore(deps-dev): bump nuxt from 2.17.3 to 3.12.4 in /test/fixture-ts/www

Bumps [nuxt](https://github.com/nuxt/nuxt/tree/HEAD/packages/nuxt) from 2.17.3 to 3.12.4.
- [Release notes](https://github.com/nuxt/nuxt/releases)
- [Commits](https://github.com/nuxt/nuxt/commits/v3.12.4/packages/nuxt)

---
updated-dependencies:
- dependency-name: nuxt
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

test/fixture-ts/www/package.json

@@ -3,7 +3,7 @@
   "license": "MIT",
   "devDependencies": {
     "@nuxt/typescript-build": "latest",
-    "nuxt": "^2.17.3"
+    "nuxt": "^3.12.4"
   },
   "dependencies": {
     "@nuxt/typescript-runtime": "latest"