midori|vimb: fix tarball job

this is needed after c6e51d0369

pkgs/applications/networking/browsers/midori/default.nix

@@ -49,6 +49,10 @@ stdenv.mkDerivation rec {
     libarchive
   ];
 
+  passthru = {
+    inherit gtk3;
+  };
+
   meta = with lib; {
     description = "Lightweight WebKitGTK web browser";
     homepage = "https://www.midori-browser.org/";

pkgs/applications/networking/browsers/vimb/default.nix

@@ -16,6 +16,10 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ wrapGAppsHook pkg-config ];
   buildInputs = [ gtk3 libsoup webkitgtk glib-networking gsettings-desktop-schemas ];
 
+  passthru = {
+    inherit gtk3;
+  };
+
   makeFlags = [ "PREFIX=${placeholder "out"}" ];
 
   meta = {