sysvinit: 2.88dsf -> 2.89

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

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

These checks were done:

- built on NixOS
- ran `/nix/store/n54idc6ddkgkwnbbg8y6avb5wvzb5s34-sysvinit-2.89/bin/last help` got 0 exit code
- ran `/nix/store/n54idc6ddkgkwnbbg8y6avb5wvzb5s34-sysvinit-2.89/bin/utmpdump -h` got 0 exit code
- ran `/nix/store/n54idc6ddkgkwnbbg8y6avb5wvzb5s34-sysvinit-2.89/bin/wall help` got 0 exit code
- found 2.89 with grep in /nix/store/n54idc6ddkgkwnbbg8y6avb5wvzb5s34-sysvinit-2.89
- directory tree listing: https://gist.github.com/6fdc40b90f12b6caa767385d367da4d9