gscan2pdf: 2.12.6 -> 2.12.8

Adds a patch that fixes ffmpeg 5.1 compatibility

pkgs/applications/graphics/gscan2pdf/default.nix

@@ -10,13 +10,17 @@ with lib;
 
 perlPackages.buildPerlPackage rec {
   pname = "gscan2pdf";
-  version = "2.12.6";
+  version = "2.12.8";
 
   src = fetchurl {
     url = "mirror://sourceforge/gscan2pdf/gscan2pdf-${version}.tar.xz";
-    sha256 = "sha256-9ntpUEM3buT3EhneXz9G8bibvzOnEK6Xt0jJcTvLKT0=";
+    hash = "sha256-dmN2fMBDZqgvdHQryQgjmBHeH/h2dihRH8LkflFYzTk=";
   };
 
+  patches = [
+    ./ffmpeg5-compat.patch
+  ];
+
   nativeBuildInputs = [ wrapGAppsHook ];
 
   buildInputs =

pkgs/applications/graphics/gscan2pdf/ffmpeg5-compat.patch

@@ -0,0 +1,15 @@
+--- a/t/351_unpaper.t
++++ b/t/351_unpaper.t
+@@ -88,8 +88,10 @@
+ 
+                         # if we use unlike, we no longer
+                         # know how many tests there will be
+-                        if ( $msg !~
+-/(deprecated|Encoder did not produce proper pts, making some up)/
++                        if ( $msg !~ /( deprecated |
++                            \Qdoes not contain an image sequence pattern\E |
++                            \QEncoder did not produce proper pts, making some up\E |
++                            \Quse the -update option\E )/x
+                           )
+                         {
+                             fail 'no warnings';