idnkit: 1.0 -> 2.3

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

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

These checks were done:

- built on NixOS
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idncheck -h` got 0 exit code
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idncheck help` got 0 exit code
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idncheck -v` and found version 2.3
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idncmp -h` got 0 exit code
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idncmp -v` and found version 2.3
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idnconv2 -h` got 0 exit code
- ran `/nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3/bin/idnconv2 -v` and found version 2.3
- found 2.3 with grep in /nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3
- found 2.3 in filename of file in /nix/store/i6jnwdj4yjd07jpr0v9alrvprv06qm39-idnkit-2.3
- directory tree listing: https://gist.github.com/79f15455351ddaf8b8f16b15897f346f