xfontsel: 1.0.5 -> 1.0.6

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. 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 1.0.6 with grep in /nix/store/adg669da0gmhxmlgh7y2w5c7nw3w10gi-xfontsel-1.0.6