chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -42,7 +42,7 @@
     "@types/node": "^24.10.0",
     "@typescript-eslint/eslint-plugin": "^7.13.1",
     "@typescript-eslint/parser": "^7.13.1",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.15",
     "autoprefixer": "^10.4.21",
     "cz-conventional-changelog": "^3.3.0",
     "esbuild": "^0.25.12",
@@ -56,7 +56,7 @@
     "tsup": "^8.5.0",
     "typescript": "^5.8.3",
     "vite": "^7.2.2",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.15"
   },
   "repository": {
     "type": "git",