Update note to CoderDojo 和歌山

Author: yasulab

db/dojos.yml

@@ -3410,7 +3410,7 @@
 - id: 47
   order: '302015'
   created_at: '2016-11-01'
-  note: Active for years. https://coderdojo-wakayama.hatenablog.com/
+  note: 2025-08-17 https://coderdojo-wakayama.hatenablog.com/entry/2025/08/09/180923
   name: 和歌山
   prefecture_id: 30
   url: https://coderdojo-wakayama.hatenablog.com/