According to the Actions log for that repository it generally takes about 11-16 seconds per scrape, nowhere near a full minute. Worst case, if it's 16 seconds every time, for a 31-day month that's 31 days * 72 actions/day * 16 sec/action = 595.2 minutes, well within the free tier limit.

And if it does become a problem it can easily be scaled down to once per hour or something with a single git commit.