libjpeg_original: 8d -> 9c

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 9c with grep in /nix/store/m070zrgfdkwdqz5p3klbw9r27iz38mjh-libjpeg-9c-bin
- directory tree listing: https://gist.github.com/94ec29f471c8e23b5f10a875c612fd29