chore(deps): update dependency vitest to v2

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     "typescript": "^5.6.3",
     "vite": "^5.4.11",
     "vite-plugin-singlefile": "^2.0.3",
-    "vitest": "^1.6.0"
+    "vitest": "^2.1.5"
   },
   "volta": {
     "node": "20.18.0"