fixing pipeline

Author: brown9804

.github/workflows/validate_and_fix_notebook.yml

@@ -52,6 +52,9 @@ jobs:
 
       - name: Commit changes
         run: |
+          git fetch origin
+          git checkout -b ${{ github.event.pull_request.head.ref }} origin/${{ github.event.pull_request.head.ref }}
           git add -A
           git commit -m "Fix notebook format issues" || echo "No changes to commit"
+          git pull --rebase origin ${{ github.event.pull_request.head.ref }} || echo "No rebase needed"
           git push origin HEAD:${{ github.event.pull_request.head.ref }}