cpp-hocon: 0.1.6 -> 0.1.7

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

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

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 0.1.7 with grep in /nix/store/xvra7ffhxjj2p4j80p253jwjxgwyp1rl-cpp-hocon-0.1.7
- directory tree listing: https://gist.github.com/f58abd979d8b4e35bed032e929b39177
- du listing: https://gist.github.com/361aabaa0ba139c553980b12090a1f95