Update GitHub Actions workflow to use force push for main branch

.github/workflows/main.yml

@@ -30,4 +30,4 @@ jobs:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
         run: |
           git remote set-url origin https://Oxbridge-Economics:[email protected]/spaces/Oxbridge-Economics/Mailbox
-          git push origin main
+          git push origin main --force