jpegoptim: 1.4.5 -> 1.4.6 (#39229)

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/c0w9l7rcn6kx098z11nx3x5q53dvcvmd-jpegoptim-1.4.6/bin/jpegoptim -h’ got 0 exit code
- ran ‘/nix/store/c0w9l7rcn6kx098z11nx3x5q53dvcvmd-jpegoptim-1.4.6/bin/jpegoptim --help’ got 0 exit code
- ran ‘/nix/store/c0w9l7rcn6kx098z11nx3x5q53dvcvmd-jpegoptim-1.4.6/bin/jpegoptim help’ got 0 exit code
- found 1.4.6 with grep in /nix/store/c0w9l7rcn6kx098z11nx3x5q53dvcvmd-jpegoptim-1.4.6
- directory tree listing: https://gist.github.com/ccc6411a2aca02d1769831b9c561f6b4