gitlab-container-registry: fix build on darwin with sandbox

(cherry picked from commit 3277dd227d)

pkgs/by-name/gi/gitlab-container-registry/package.nix

@@ -32,6 +32,8 @@ buildGoModule rec {
     in
     [ "-skip=^${builtins.concatStringsSep "$|^" skippedTests}$" ];
 
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "GitLab Docker toolset to pack, ship, store, and deliver content";
     license = licenses.asl20;