Merge pull request #265454 from trofi/meld-leaner-closure

meld: avoid -dev paths in runtime closure

pkgs/applications/version-management/meld/default.nix

···
     gnome.adwaita-icon-theme
   ];
 
-  propagatedBuildInputs = with python3.pkgs; [
+  pythonPath = with python3.pkgs; [
     pygobject3
     pycairo
   ];