Update 2refresh.py to display only date instead of time

This change will make the tstamp column contain only the date in YYYY-MM-DD format (e.g., 2025-07-28) instead of the full timestamp with time and timezone information, which is not super usefull

Author: a5dur

2refresh.py

@@ -112,7 +112,7 @@ def get_dynamic_metadata(self, repo) -> Optional[Dict]:
                 'open_issues': repo.open_issues_count,
                 'contributors_count': contributors_count,
                 'discussions': discussions_enabled,
-                'tstamp': datetime.utcnow().isoformat() + '+00:00'  # Timestamp of when this data was collected
+                'tstamp': datetime.utcnow().strftime('%Y-%m-%d')  # Timestamp of when this data was collected
             }
 
             return metadata