Update update.yml

.github/workflows/update.yml

@@ -49,12 +49,12 @@ jobs:
         run: |
           git add streams
           git status
-          git commit -m "[Bot] Update /streams" -m "Committed by [iptv-bot](https://github.com/apps/iptv-bot) via [update](https://github.com/iptv-org/iptv/actions/runs/${{ github.run_id }}) workflow." -m "${{ steps.playlist-update.outputs.OUTPUT }}" --no-verify
+          git diff-index --quiet HEAD || git commit -m "[Bot] Update /streams" -m "Committed by [iptv-bot](https://github.com/apps/iptv-bot) via [update](https://github.com/iptv-org/iptv/actions/runs/${{ github.run_id }}) workflow." -m "${{ steps.playlist-update.outputs.OUTPUT }}" --no-verify
       - name: commit changes to readme.md
         run: |
           git add README.md
           git status
-          git commit -m "[Bot] Update README.md" -m "Committed by [iptv-bot](https://github.com/apps/iptv-bot) via [update](https://github.com/iptv-org/iptv/actions/runs/${{ github.run_id }}) workflow." --no-verify
+          git diff-index --quiet HEAD || git commit -m "[Bot] Update README.md" -m "Committed by [iptv-bot](https://github.com/apps/iptv-bot) via [update](https://github.com/iptv-org/iptv/actions/runs/${{ github.run_id }}) workflow." --no-verify
       - name: push all changes to the repository
         if: ${{ !env.ACT && github.ref == 'refs/heads/master' }}
         run: git push