pcmanfm: 1.2.5 -> 1.3.0

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/z37gyw9vskaby2caizkzghjd7ikafv64-pcmanfm-1.3.0/bin/pcmanfm -h’ got 0 exit code
- ran ‘/nix/store/z37gyw9vskaby2caizkzghjd7ikafv64-pcmanfm-1.3.0/bin/pcmanfm --help’ got 0 exit code
- ran ‘/nix/store/z37gyw9vskaby2caizkzghjd7ikafv64-pcmanfm-1.3.0/bin/.pcmanfm-wrapped -h’ got 0 exit code
- ran ‘/nix/store/z37gyw9vskaby2caizkzghjd7ikafv64-pcmanfm-1.3.0/bin/.pcmanfm-wrapped --help’ got 0 exit code
- found 1.3.0 with grep in /nix/store/z37gyw9vskaby2caizkzghjd7ikafv64-pcmanfm-1.3.0
- directory tree listing: https://gist.github.com/f15deaa66af5124a632abbca797f7240