Bump @cloudflare/workers-types

Bumps the development-dependencies group in /serve-robots with 1 update: [@cloudflare/workers-types](https://github.com/cloudflare/workerd).


Updates `@cloudflare/workers-types` from 4.20260408.1 to 4.20260409.1
- [Release notes](https://github.com/cloudflare/workerd/releases)
- [Changelog](https://github.com/cloudflare/workerd/blob/main/RELEASE.md)
- [Commits](https://github.com/cloudflare/workerd/commits)

---
updated-dependencies:
- dependency-name: "@cloudflare/workers-types"
  dependency-version: 4.20260409.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: development-dependencies
...

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

Author: dependabot[bot]

serve-robots/package-lock.json

@@ -8,7 +8,7 @@
     "lint": "prettier --check ."
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20260408.1",
+    "@cloudflare/workers-types": "^4.20260409.1",
     "prettier": "^3.2.5",
     "typescript": "^6.0.2",
     "wrangler": "^4.81.0"