libseccomp: make pythonsrc reproducible
libseccomp: make pythonsrc reproducible

makes the pythonsrc reproducible by making the file date and
ordering static.

A more general solution to this problem has been proposed in
https://github.com/NixOS/nixpkgs/issues/106643

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs