Switch docs deploy to GITHUB_TOKEN

Author: calebzulawski

Diff for: .github/workflows/doc.yml

@@ -25,6 +25,6 @@ jobs:
       - name: Deploy Documentation
         uses: peaceiris/actions-gh-pages@v3
         with:
-          deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_branch: gh-pages
           publish_dir: ./target/doc