chore(dev-deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -97,7 +97,7 @@
     "@types/node": "22.17.0",
     "@typescript-eslint/eslint-plugin": "8.48.1",
     "@typescript-eslint/parser": "8.48.1",
-    "@vitest/coverage-v8": "3.2.4",
+    "@vitest/coverage-v8": "4.0.16",
     "@vitest/eslint-plugin": "1.3.4",
     "commitizen": "4.3.1",
     "cspell": "9.4.0",
@@ -139,7 +139,7 @@
     "tsd": "0.32.0",
     "typescript": "5.9.2",
     "vite-tsconfig-paths": "5.1.4",
-    "vitest": "3.2.4",
+    "vitest": "4.0.16",
     "yaml-eslint-parser": "1.3.0"
   },
   "packageManager": "pnpm@10.14.0",