chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
   },
   "devDependencies": {
     "@types/node": "^22.13.10",
-    "@vitest/coverage-v8": "^3.0.8",
+    "@vitest/coverage-v8": "^4.0.6",
     "automd": "^0.4.0",
     "changelogen": "^0.6.1",
     "eslint": "^9.22.0",
@@ -44,7 +44,7 @@
     "scule": "^1.3.0",
     "typescript": "^5.8.2",
     "unbuild": "^3.5.0",
-    "vitest": "^3.0.8"
+    "vitest": "^4.0.6"
   },
   "packageManager": "[email protected]"
 }