chore(deps): update vitest monorepo to v2

Author: renovate[bot]

package.json

@@ -63,15 +63,15 @@
   "license": "MIT",
   "devDependencies": {
     "@types/node": "^22.9.0",
-    "@vitest/coverage-v8": "^1.6.0",
+    "@vitest/coverage-v8": "^2.1.5",
     "lint-staged": "^15.2.10",
     "pinia": "^2.2.6",
     "prettier": "^3.3.3",
     "standard-version": "^9.5.0",
     "ts-debounce": "^4.0.0",
     "tsup": "^8.3.5",
     "typescript": "~5.6.3",
-    "vitest": "^1.6.0",
+    "vitest": "^2.1.5",
     "vue": "^3.5.13",
     "yorkie": "^2.0.0"
   },