[RemovePkg] qrencode

**Packages to remove** - `qrencode` **Why** This package hasn't been maintained for a long time. The last commit was 5 years ago as of Nov 22, 2025[1]. And there has been a lot of unresolved issues[2] [3] [4]. **Potential Risk** - `prison` - `xfce4-clipman-plugin` still depend on the library **Additional context** We already have `zxing-cpp` in the repository, which is actively maintained and also supports QRcode generation/parsing. A possible solution is to write a compatibility layer to provide qrencoder API through `zxing-cpp`. However, I'm unsure whether the parameters could be tuned as fine as `qrencoder`. It'll be best to help upstream projects move away from the inactive projects. Also Cc: @septs. Thanks for pointing out state of the project. [1]: https://github.com/fukuchi/libqrencode/commit/715e29fd4cd71b6e452ae0f4e36d917b43122ce8 [2]: https://github.com/fukuchi/libqrencode/issues/234 [3]: https://github.com/fukuchi/libqrencode/issues/193 [4]: https://github.com/fukuchi/libqrencode/issues/223