gns3-{gui,server}: 2.2.5 -> 2.2.6 (#83422)

pkgs/applications/networking/gns3/gui.nix

@@ -1,12 +1,10 @@
-{ stable, branch, version, sha256Hash, mkOverride }:
+{ stable, branch, version, sha256Hash, mkOverride, commonOverrides }:
 
 { lib, stdenv, python3, fetchFromGitHub }:
 
 let
   # TODO: This package requires qt5Full to launch
-  defaultOverrides = [
-    (mkOverride "psutil" "5.6.3"
-      "1wv31zly44qj0rp2acg58xbnc7bf6ffyadasq093l455q30qafl6")
+  defaultOverrides = commonOverrides ++ [
     (mkOverride "jsonschema" "2.6.0"
       "00kf3zmpp9ya4sydffpifn0j0mzm342a2vzh82p6r0vh10cg7xbg")
   ];
@@ -40,7 +38,8 @@ in python.pkgs.buildPythonPackage rec {
       requires access to a local or remote GNS3 server (it's recommended to
       download the official GNS3 VM).
     '';
-    homepage = https://www.gns3.com/;
+    homepage = "https://www.gns3.com/";
+    changelog = "https://github.com/GNS3/gns3-gui/releases/tag/v${version}";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];