Update dependency vitest to v2.1.9 [SECURITY]

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
     "tailwindcss": "4.1.11",
     "ts-node": "10.9.2",
     "typescript": "5.6.2",
-    "vitest": "2.1.1"
+    "vitest": "2.1.9"
   },
   "private": true,
   "lint-staged": {