[NEP-18619]: Using the new filter_configuration endpoint to fetch the filter configuration

Author: soundarya-mv

lib/superset/services/duplicate_dashboard.rb

@@ -259,7 +259,7 @@ def source_dashboard_dataset_ids
       end
 
       def source_dashboard_filter_dataset_ids
-        @filter_dataset_ids ||= Superset::Dashboard::Filters::List.new(id).perform
+        @filter_dataset_ids ||= source_dashboard.filter_configuration.map { |c| c['targets'] }.flatten.compact.map { |c| c['datasetId'] }.flatten.compact
       end
 
       # Primary Assumption is that all charts datasets on the source dashboard are pointing to the same database schema