Prepare group import feature to use ndjson

app/services/groups/import_export/import_service.rb

@@ -53,7 +53,7 @@ module Groups
       end
 
       def ndjson?
-        ::Feature.enabled?(:group_import_ndjson, @group&.parent) &&
+        ::Feature.enabled?(:group_import_ndjson, @group&.parent, default_enabled: true) &&
           File.exist?(File.join(@shared.export_path, 'tree/groups/_all.ndjson'))
       end
 

changelogs/unreleased/enable-group-import-ndjson-by-default.yml

+---
+title: Prepare group import feature to use ndjson
+merge_request: 31741
+author:
+type: changed