yakuake: 3.0.4 -> 3.0.5

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

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

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 3.0.5 with grep in /nix/store/8ynmx32jvp39xw8x1n6spjxn7acamcys-yakuake-3.0.5
- directory tree listing: https://gist.github.com/b997d1ba53b4383b309cdbe6423958b6