Merge pull request #309359 from khaneliman/git-cliff

git-cliff: add meta.mainProgram

pkgs/applications/version-management/git-cliff/default.nix

···
     changelog = "https://github.com/orhun/git-cliff/blob/v${version}/CHANGELOG.md";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ siraben ];
+    mainProgram = "git-cliff";
   };
 }