ci(update): remove reference to octokit/routes

Author: gr2m

.github/workflows/update.yml

@@ -38,8 +38,6 @@ jobs:
         with:
           title: "🚧 GitHub OpenAPI specifications changed"
           body: |
-            See what changed at https://github.com/octokit/routes/releases/latest.
-
             If there are any new endpoints, then the code changes will likely required an update of [`@octokit/types`](https://github.com/octokit/types.ts/pulls). It should have received a pull request as well, merge & release it first, then update the `@octokit/types` version in package.json in this pull request.
 
             Make sure to update the commits so that the merge results in helpful release notes, see [Merging the Pull Request & releasing a new version](https://github.com/octokit/rest.js/blob/master/CONTRIBUTING.md#merging-the-pull-request--releasing-a-new-version).