fix: add --global kwargs to git config calls to see if that fixes the error

Author: 56kyle

.github/workflows/update-demo.yml

@@ -29,8 +29,8 @@ jobs:
       - name: Configure Git
         working-directory: "${{ github.workspace }}/cookiecutter-robust-python"
         run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
 
       - name: Checkout Demo
         uses: actions/checkout@v4