qlcplus: 4.11.1 -> 4.11.2

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/qlcplus/versions.

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 4.11.2 with grep in /nix/store/4qhjfvk9i1hi3q4jqzic5ajndnqschfi-qlcplus-4.11.2
- directory tree listing: https://gist.github.com/2877914d9c008fd955d2946bfd21926e