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

Author: renovate[bot]

package.json

@@ -104,7 +104,7 @@
     "@types/node": "18.19.110",
     "@typescript-eslint/eslint-plugin": "8.45.0",
     "@typescript-eslint/parser": "8.45.0",
-    "@vitest/coverage-v8": "3.2.4",
+    "@vitest/coverage-v8": "4.0.6",
     "@vitest/eslint-plugin": "1.2.1",
     "cspell": "9.2.2",
     "dedent": "1.6.0",
@@ -149,7 +149,7 @@
     "tsx": "4.19.4",
     "typescript": "5.8.3",
     "vite-tsconfig-paths": "5.1.4",
-    "vitest": "3.2.4",
+    "vitest": "4.0.6",
     "yaml-eslint-parser": "1.3.0"
   },
   "peerDependencies": {