chore(nuxt): bump vitest

Bumps the development group with 1 update in the /packages/nuxt directory: [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `vitest` from 1.6.0 to 2.1.5
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.5/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: development
...

Signed-off-by: dependabot[bot] <[email protected]>

packages/nuxt/package.json

@@ -16,7 +16,7 @@
     "@nuxt/test-utils": "^3.14.4",
     "@nuxtjs/tailwindcss": "^6.12.1",
     "nuxt": "^3.14.159",
-    "vitest": "^2.1.3"
+    "vitest": "^2.1.5"
   },
   "scripts": {
     "build": "nuxt-module-build --outDir ../../dist/nuxt && pnpm dlx nuxi prepare ./playground",