build(deps-dev): bump @types/node from 22.15.19 to 22.15.21 in /web-app (#132)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 22.15.19 to 22.15.21.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 22.15.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

web-app/package-lock.json

@@ -24,7 +24,7 @@
   },
   "devDependencies": {
     "@eslint/js": "9.27.0",
-    "@types/node": "22.15.19",
+    "@types/node": "22.15.21",
     "@types/react": "19.1.5",
     "@types/react-dom": "19.1.5",
     "@vitejs/plugin-react": "4.4.1",