You should really remove the entire PDF of the book that you've shared on a public repo. No Starch Press is a gem and worth protecting.
Not to mention
Adobe fixes PDF zero-day security bug that hackers have exploited for months
https://techcrunch.com/2026/04/14/adobe-fixes-pdf-zero-day-security-bug-that-hackers-have-exploited-for-months/
That's the first edition (2019), not the second (2025). But both are in annas archive, anyway