Rename subject of @elct9620

Author: ryudoawaru

_data/schedule.yml

@@ -482,7 +482,7 @@
   day: 2
   track: TR209
   lang: cht
-  subject: "Crafting AI-Friendly Application in Ruby"
+  subject: "Crafting AI-Driven Workflow for Ruby"
   speaker_id: X338CA
   speaker_avatar: elct9620.jpg
   speaker_name: 蒼時弦也 / Aotoki Tsuruya