Added fallback

Author: jaydrogers

.github/workflows/scheduled-task_update-sponsors.yml

@@ -16,6 +16,7 @@ jobs:
           organization: true
           minimum: 501
           maximum: 5000
+          fallback: 'No bronze sponsors yet. [Become a sponsor →](https://github.com/sponsors/serversideup)'
           token: ${{ secrets.SPONSORS_README_ACTION_PERSONAL_ACCESS_TOKEN }}
           marker: 'bronze'
           template: '* [{{{ name }}}]({{{ url }}}) - {{{ login }}}'