[refactor] api 주소 변경

[dud1111122]

🎟️ 상위 작업 (Ticket Number)

DASOMFE-dev

🎯 목적(Purpose)

https://dmu-dasom-api.or.kr -> https://api.dmu-dasom.or.kr

📝 상세 내용(Description)

https://dmu-dasom-api.or.kr -> https://api.dmu-dasom.or.kr