comic-relief: update homepage

pkgs/data/fonts/comic-relief/default.nix

···
   sha256 = "0dz0y7w6mq4hcmmxv6fn4mp6jkln9mzr4s96vsg68wrl5b7k9yff";
 
   meta = with lib; {
-    homepage = "http://loudifier.com/comic-relief/";
+    homepage = "https://fontlibrary.org/en/font/comic-relief";
     description = "A font metric-compatible with Microsoft Comic Sans";
     longDescription = ''
       Comic Relief is a typeface designed to be metrically equivalent