chore(deps): update dependency vitest to v4 (#943)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -144,7 +144,7 @@
         "tsx": "^4.16.5",
         "typescript": "^5.8.3",
         "typescript-eslint": "^8.31.0",
-        "vitest": "^3.0.0"
+        "vitest": "^4.0.0"
     },
     "volta": {
         "node": "24.11.1",