chore(deps): update dependency @types/node to v22.15.21

Author: renovate[bot]

package.json

@@ -42,7 +42,7 @@
     "@algolia/client-search": "^5.3.0",
     "@shikijs/vitepress-twoslash": "^3.0.0",
     "@types/express": "^5.0.0",
-    "@types/node": "22.15.19",
+    "@types/node": "22.15.21",
     "@types/react": "^19.0.0",
     "@type-challenges/utils": "^0.1.1",
     "feed": "^5.0.0",