Restore GITHUB_PAT for allcontributors API access

The allcontributors package needs GITHUB_PAT to avoid rate limiting.

Co-Authored-By: sbfnk-bot <[email protected]>

Author: sbfnk

.github/workflows/render_readme.yml

@@ -38,6 +38,8 @@ concurrency:
 jobs:
   render-readme:
     runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Generate token
         id: generate_token