Why are there so many things these days about using some super complex cloud solution hack for something that can fundamentally be done easier and more efficiently from a cron job on a raspi zero on a home network.

curl yoursite.tld | some_script_that_parses_the_result and generates an uptime page > githubpagescontent.md; git commit -m $(get_the_current_time.sh); git push origin master

for $20, you can get the same thing with waaaay less stuff going on behind the scenes and without taking advantage of the ci resource for something it wasn't fundamentally meant for.