pdfpc: 4.1 -> 4.1.1

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/dvwwb2myl9351rzj9gf2p3x1731d9vnc-pdfpc-4.1.1/bin/pdfpc -h’ got 0 exit code
- ran ‘/nix/store/dvwwb2myl9351rzj9gf2p3x1731d9vnc-pdfpc-4.1.1/bin/pdfpc --help’ got 0 exit code
- ran ‘/nix/store/dvwwb2myl9351rzj9gf2p3x1731d9vnc-pdfpc-4.1.1/bin/.pdfpc-wrapped -h’ got 0 exit code
- ran ‘/nix/store/dvwwb2myl9351rzj9gf2p3x1731d9vnc-pdfpc-4.1.1/bin/.pdfpc-wrapped --help’ got 0 exit code
- found 4.1.1 with grep in /nix/store/dvwwb2myl9351rzj9gf2p3x1731d9vnc-pdfpc-4.1.1
- directory tree listing: https://gist.github.com/88ef2cda6a77852e5d7541ebd43e4fec