Update sync_with_spaces.yml

.github/workflows/sync_with_spaces.yml

@@ -13,6 +13,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
+      - name: Setup git
+        run: |
+          git config --global user.name "Lewis Tunstall"
+          git config --global user.email lewis@huggingface.co
       - name: Push to hub
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}