Fix: add missing github token

Author: tollsimy

.github/workflows/deploy.yml

@@ -26,3 +26,5 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
           mkdocs gh-deploy --force
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}