maintainers: remove gordias

as their GitHub account appears to be deleted

maintainers/maintainer-list.nix

···
     githubId = 1621335;
     name = "Andrew Trachenko";
   };
-  gordias = {
-    name = "Gordias";
-    email = "[e-mail]";
-    github = "gordiasdot";
-    githubId = 94724133;
-    keys = [{
-      fingerprint = "C006 B8A0 0618 F3B6 E0E4  2ECD 5D47 2848 30FA A4FA";
-    }];
-  };
   gotcha = {
     email = "[e-mail]";
     github = "gotcha";

pkgs/servers/alps/default.nix

···
     description = "A simple and extensible webmail.";
     homepage = "https://git.sr.ht/~migadu/alps";
     license = licenses.mit;
-    maintainers = with maintainers; [ gordias booklearner madonius hmenke ];
+    maintainers = with maintainers; [ booklearner madonius hmenke ];
   };
 }