switched to GitHub tarballs for tests, but the repo has no tags and i
couldn't figure out the exact commit, so i picked the newest (from
2014).
- use PEP517
- enable python3_11
- enable tests
- add pypi remote-id
Closes: https://bugs.gentoo.org/897512
Signed-off-by: Ronny (tastytea) Gutbrod <gentoo@tastytea.de>