Update flake

packages/tools/games/replaysorcery/default.nix

@@ -1,5 +1,5 @@
 { stdenv, lib,
-  pkgconfig, cmake, ffmpeg, libdrm, libpulseaudio, xorg, libnotify,
+  pkg-config, cmake, ffmpeg, libdrm, libpulseaudio, xorg, libnotify,
   fetchgit }:
 
 stdenv.mkDerivation rec {
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    pkgconfig cmake
+    pkg-config cmake
   ];
 
   buildInputs = [