dcmtk: 3.6.7 -> 3.6.8

Fixes CVE-2022-43272.

Changes:
https://github.com/DCMTK/dcmtk/compare/DCMTK-3.6.7...DCMTK-3.6.8

pkgs/applications/science/medicine/dcmtk/0001-Fix-cmake.patch

@@ -1,12 +0,0 @@
-diff --git a/CMake/dcmtk.pc.in b/CMake/dcmtk.pc.in
-index 13c79c0d5..b1edf725c 100644
---- a/CMake/dcmtk.pc.in
-+++ b/CMake/dcmtk.pc.in
-@@ -1,6 +1,6 @@
-  prefix="@CMAKE_INSTALL_PREFIX@"
-  exec_prefix="${prefix}"
-- libdir="${prefix}/@CMAKE_INSTALL_LIBDIR@"
-+ libdir=@CMAKE_INSTALL_FULL_LIBDIR@"
-  includedir="${prefix}/include/"
- 
-  Name: DCMTK

pkgs/applications/science/medicine/dcmtk/default.nix

@@ -4,20 +4,17 @@
 with lib;
 stdenv.mkDerivation rec {
   pname = "dcmtk";
-  version = "3.6.7";
+  version = "3.6.8";
   src = fetchFromGitHub {
     owner = "DCMTK";
     repo = pname;
     rev = "DCMTK-${version}";
-    sha256 = "sha256-Pw99R6oGcLX6Z7s8ZnpbBBqcIvY9Rl/nw2PVGjpD3gY=";
+    hash = "sha256-PQR9+xSlfBvogv0p6AL/yapelJpsYteA4T4lPkOIfLc=";
   };
 
   nativeBuildInputs = [ cmake ];
   buildInputs = [ libpng zlib libtiff libxml2 openssl libiconv ];
 
-  # This is only needed until https://github.com/DCMTK/dcmtk/pull/75/files is merged
-  patches = [ ./0001-Fix-cmake.patch ];
-
   doCheck = true;
 
   meta = {