fix: Add recursive query string (#4507)

### Description
- Adds `recursive=true` query string to the url in github-proxy

.changeset/loud-elephants-reflect.md

@@ -0,0 +1,5 @@
+---
+'@hyperlane-xyz/github-proxy': minor
+---
+
+Add recursive=true query string to Github Proxy to allow nested tree search

typescript/github-proxy/README.md

@@ -0,0 +1,23 @@
+# Github Proxy
+
+## Overview
+
+Github Proxy is a CloudFlare Worker that makes a Github API requests using an API key. This authenticated method allows higher limits than the non-authenticated mode.
+
+## Keys
+
+Acquire a Github api key by creating a new [fine-grained personal access token](https://github.com/settings/tokens).
+
+## Local Development
+
+Prerequisites: Copy the `.dev.vars.example` and add the Github API key.
+
+Development is managed by the Wrangler CLI. To start dev mode execute `yarn dev`. This will start a local server.
+
+## Testing
+
+Unit tests can be executed using `yarn test`.
+
+## Deployment
+
+Execute `yarn deploy` to deploy to production. Note that the deployment requires permissions. To deploy to a staging environment use `yarn deploy:staging`. Use `yarn deploy:key` to attach the Github key to the Worker.

typescript/github-proxy/src/index.ts

@@ -12,7 +12,7 @@ export default {
       return new Response(DISALLOWED_URL_MSG, { status: 401 });
     }
 
-    const apiUrl = new URL(`${GITPUB_API_HOST}${apiUrlPath}`);
+    const apiUrl = new URL(`${GITPUB_API_HOST}${apiUrlPath}?recursive=true`);
     return fetch(apiUrl, {
       method: 'GET',
       headers: {