Bump @types/node from 22.19.19 to 26.1.2 in /landing

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 22.19.19 to 26.1.2.
- [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: 26.1.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

landing/package-lock.json

@@ -42,7 +42,7 @@
   "devDependencies": {
     "@cloudflare/vite-plugin": "1.50.0",
     "@tailwindcss/postcss": "4.2.1",
-    "@types/node": "22.19.19",
+    "@types/node": "26.1.2",
     "@types/react": "19.2.14",
     "@types/react-dom": "19.2.3",
     "@vitejs/plugin-react": "6.0.2",