radamsa: 0.4 -> 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/radamsa/versions.

These checks were done:

- built on NixOS
- ran `/nix/store/vjls4rpfr18a844phj56y6zkgjhkk44n-radamsa-0.5/bin/radamsa -h` got 0 exit code
- ran `/nix/store/vjls4rpfr18a844phj56y6zkgjhkk44n-radamsa-0.5/bin/radamsa --help` got 0 exit code
- ran `/nix/store/vjls4rpfr18a844phj56y6zkgjhkk44n-radamsa-0.5/bin/radamsa -V` and found version 0.5
- ran `/nix/store/vjls4rpfr18a844phj56y6zkgjhkk44n-radamsa-0.5/bin/radamsa --version` and found version 0.5
- found 0.5 with grep in /nix/store/vjls4rpfr18a844phj56y6zkgjhkk44n-radamsa-0.5
- directory tree listing: https://gist.github.com/fc1b475926e3a86b55b9d18567458bd4