chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -43,14 +43,14 @@
   },
   "devDependencies": {
     "@types/node": "^22.17.0",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.2",
     "automd": "^0.4.0",
     "changelogen": "^0.6.2",
     "eslint": "^9.32.0",
     "eslint-config-unjs": "^0.5.0",
     "prettier": "^3.6.2",
     "typescript": "^5.9.2",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.2"
   },
   "packageManager": "[email protected]"
 }