chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -27,7 +27,7 @@
     "@types/babel__helper-module-imports": "^7.18.3",
     "@types/babel__helper-plugin-utils": "^7.10.3",
     "@types/node": "^24.7.0",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.6",
     "@vue/babel-plugin-jsx": "workspace:*",
     "bumpp": "^10.3.1",
     "eslint": "^9.37.0",
@@ -40,6 +40,6 @@
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.45.0",
     "vite": "^7.1.9",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.6"
   }
 }