build(deps-dev): bump wrangler in /packages/sdk/cloudflare/example

Bumps [wrangler](https://github.com/cloudflare/workers-sdk/tree/HEAD/packages/wrangler) from 2.13.0 to 2.20.1.
- [Release notes](https://github.com/cloudflare/workers-sdk/releases)
- [Changelog](https://github.com/cloudflare/workers-sdk/blob/[email protected]/packages/wrangler/CHANGELOG.md)
- [Commits](https://github.com/cloudflare/workers-sdk/commits/[email protected]/packages/wrangler)

---
updated-dependencies:
- dependency-name: wrangler
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

packages/sdk/cloudflare/example/package.json

@@ -17,7 +17,7 @@
     "prettier": "^2.6.2",
     "ts-jest": "^28.0.3",
     "typescript": "5.1.6",
-    "wrangler": "2.13.0"
+    "wrangler": "2.20.1"
   },
   "scripts": {
     "build": "node build.js",