fix source typo

Author: nasbench

datasets/attack_techniques/T1070.001/windows_event_log_cleared/data.yml

@@ -1,6 +1,6 @@
 author: Generated by dataset_analyzer.py
 id: 9c17ce79-5056-42e9-a614-4c2087471b67
-date: '2025-08-12'
+date: '2026-04-15'
 description: Automatically categorized datasets in directory windows_event_log_cleared
 environment: attack_range
 directory: windows_event_log_cleared
@@ -10,4 +10,4 @@ datasets:
 - name: windows-xml
   path: /datasets/attack_techniques/T1070.001/windows_event_log_cleared/windows-xml.log
   sourcetype: XmlWinEventLog
-  source: XmlWinEventLog:Microsoft-Windows-Eventlog
+  source: XmlWinEventLog:System