fix: change git username

.github/workflows/update-submodules.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Update submodules
         run: |
           git config --global user.email "[email protected]"
-          git config --global user.name "ivy-seed"
+          git config --global user.name "ivy-branch"
           git submodule update --remote docs/demos
           git add .
           git commit -m "Update demos 🤖"