chore(deps-dev): bump vitest from 2.1.9 to 4.1.11 in /playground

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 2.1.9 to 4.1.11.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.1.11/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 4.1.11
  dependency-type: direct:development
...

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

playground/package.json

@@ -36,6 +36,6 @@
     "jsdom": "^25.0.0",
     "typescript": "~5.6.2",
     "vite": "^5.4.3",
-    "vitest": "^2.1.0"
+    "vitest": "^4.1.11"
   }
 }