continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
`updateScript` lets us update packages automatically.
For packages that are hosted on the gnome mirror it's very easy to add
that. Inspired by https://github.com/NixOS/nixpkgs/issues/36150
He prefers to contribute to his own nixpkgs fork triton.
Since he is still marked as maintainer in many packages
this leaves the wrong impression he still maintains those.
Ben Siraphob
Jonathan Ringer
Daniel Schaefer
Jörg Thalheim
Jan Tojnar
Samuel Leathers
José Romildo Malaquias
William A. Kennington III
Evgeny Egorochkin
Mateusz Kowalczyk
Nixpkgs Monitor
Evgeny Egorochkin