https://github.com/simonw/ca-fires-history for example scrapes every 20 minutes and runs on the free GitHub Actions plan.
I've run these on free Travis CI and Circle CI plans in the past as well.
If you want to run a private Git scraper you can pay money to do so, which seems very reasonable to me.
I ran the same kind of thing against PG&E outage data last year and used it to generate different visualizations: https://simonwillison.net/2019/Oct/10/pge-outages/
https://github.com/simonw/ca-fires-history for example scrapes every 20 minutes and runs on the free GitHub Actions plan.
I've run these on free Travis CI and Circle CI plans in the past as well.
If you want to run a private Git scraper you can pay money to do so, which seems very reasonable to me.