add github API token to mkdocs workflow

.github/workflows/mkdocs-material.yml

@@ -34,6 +34,8 @@ jobs:
 
       - name: deploy to gh-pages
         if: ${{ github.ref == 'refs/heads/main' }}
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
         run: |
           python -m \
             mkdocs gh-deploy \