revert cursor value

Author: nianiB9

app/services/monitor_api/eg001_get_monitoring_dataset_service.rb

@@ -19,7 +19,7 @@ def worker
     #ds-snippet-start:Monitor1Step3
     monitor_api = DocuSign_Monitor::DataSetApi.new(api_client)
     begin
-      cursor_value = '2024-01-01T00:00:00Z'
+      cursor_value = ''
       limit = 2000
       function_results = []
       options = DocuSign_Monitor::GetStreamOptions.new