libu2f-host: 1.1.5 -> 1.1.6

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

This update was made based on information from https://repology.org/metapackage/libu2f-host/versions.

These checks were done:

- built on NixOS
- /nix/store/8jbzdkhk2krc8yc37c9bcxsbmam5csaa-libu2f-host-1.1.6/bin/u2f-host passed the binary check.
- 1 of 1 passed binary check by having a zero exit code.
- 1 of 1 passed binary check by having the new version present in output.
- found 1.1.6 with grep in /nix/store/8jbzdkhk2krc8yc37c9bcxsbmam5csaa-libu2f-host-1.1.6
- directory tree listing: https://gist.github.com/bc0958f894bcdad9565006be8be45096
- du listing: https://gist.github.com/e9a255d64be0442f7d14fca45cbcb6f0