samsung-UnifiedLinuxDriver: fix multi-output cups (#16421)

pkgs/misc/cups/drivers/samsung/4.00.39/default.nix

@@ -15,7 +15,9 @@
 
 # Do not bump lightly! Visit <http://www.bchemnet.com/suldr/supported.html>
 # to see what will break when upgrading. Consider a new versioned attribute.
-stdenv.mkDerivation rec {
+let
+  cups' = cups.out;
+in stdenv.mkDerivation rec {
   name = "samsung-UnifiedLinuxDriver-${version}";
   version = "4.00.39";
 
@@ -24,9 +26,10 @@ stdenv.mkDerivation rec {
     sha256 = "144b4xggbzjfq7ga5nza7nra2cf6qn63z5ls7ba1jybkx1vm369k";
   };
 
-  buildInputs = [ cups gcc ghostscript glibc patchelf ];
+  buildInputs = [ cups' gcc ghostscript glibc patchelf ];
 
-  inherit cups gcc ghostscript glibc;
+  inherit gcc ghostscript glibc;
+  cups = cups';
 
   builder = ./builder.sh;