kcgi: 0.10.5 -> 0.10.6 (#42251)

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

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

These checks were done:

- built on NixOS
- Warning: no invocation of /nix/store/zfgvy8w6832756z0mybwrpxznnr39pqg-kcgi-0.10.6/bin/kfcgi had a zero exit code or showed the expected version
- 0 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- directory tree listing: https://gist.github.com/e0524d16c83a499d44fe13e543d45b8d
- du listing: https://gist.github.com/67464d0f35874e292aa1c006a7ab50f1