Trigger github action when other repo changes

I want to know if there si a way to trigger an action when another repository has changed.
I can’t modify the second repository to call, using curl, the execution of the action.
Thanks for your help

You could create a scheduled workflow in your repository that checks whether a foreign repository has changed since the last run. I can’t think of a better way without webhooks or another trigger that would require changes to the foreign repo.