kexectools: 2.0.16 -> 2.0.17

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/fs7vc5d6vw26v0502smh2dhg6390d1za-kexec-tools-2.0.17/bin/kexec -h’ got 0 exit code
- ran ‘/nix/store/fs7vc5d6vw26v0502smh2dhg6390d1za-kexec-tools-2.0.17/bin/kexec --help’ got 0 exit code
- ran ‘/nix/store/fs7vc5d6vw26v0502smh2dhg6390d1za-kexec-tools-2.0.17/bin/kexec -v’ and found version 2.0.17
- ran ‘/nix/store/fs7vc5d6vw26v0502smh2dhg6390d1za-kexec-tools-2.0.17/bin/kexec --version’ and found version 2.0.17
- found 2.0.17 with grep in /nix/store/fs7vc5d6vw26v0502smh2dhg6390d1za-kexec-tools-2.0.17
- directory tree listing: https://gist.github.com/892a831f872f6ec59c936b89b0bd6aa6