Examples? I've never come across anything heavily political, aside from maybe "free software" advocacy, which I assume isn't something most governments find particularly threatening.
Not Iranian but a very famous repo is the 996 repo https://github.com/996icu/996.ICU (>250k stars) which advocates for Chinese Developers working a 996 schedule. Depending on where you look you can find a lot of political content on Github from all over the world.