nixos/tests/acme/server: patch certificate generation for longer validity

  domain = conf.domain;

in mkDerivation {

  name = "test-certs";

  buildInputs = [ minica ];

  buildInputs = [ (minica.overrideAttrs (old: {

    prePatch = ''

      sed -i 's_NotAfter: time.Now().AddDate(2, 0, 30),_NotAfter: time.Now().AddDate(20, 0, 0),_' main.go

    '';

  })) ];

  phases = [ "buildPhase" "installPhase" ];

  buildPhase = ''