fix(CICD): Changing the order of execution of the setup git config in…

… the cicd_post_sync-main-with-master.yml workflow (#29951)

### Proposed Changes
* The order of execution of the steps was changed to avoid failures
Refs: #29840

.github/workflows/cicd_post_sync-main-with-master.yml

@@ -13,16 +13,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: 'Setup git config'
-        run: |
-          git config user.name "${{ secrets.CI_MACHINE_USER }}"
-          git config user.email "[email protected]"
-          
       - name: Checkout code
         uses: actions/checkout@v4
         with:
           fetch-depth: 0 # Fetch all history for all branches
 
+      - name: 'Setup git config'
+        run: |
+          git config user.name "${{ secrets.CI_MACHINE_USER }}"
+          git config user.email "[email protected]"
+
       - name: Create or update main branch
         run: |
           # Check if 'main' branch exists