Persist bootstrap files from ci

.github/workflows/bootstrap.yaml

@@ -42,6 +42,12 @@ jobs:
           git checkout bootstrap
           chmod +x .github/workflows/bootstrap_all.sh
           cd ebcc/codegen && ./../../.github/workflows/bootstrap_all.sh
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git checkout -b bootstrap_ci
+          git add *.py
+          git commit -m "Bootstrap via ${{ github.sha }}"
+          git push origin bootstrap_ci
       - name: Run unit tests
         run: |
           python -m pip install pytest