chore: 회원 테이블 수정 스크립트 추가

backend/src/main/resources/db/migration/V3__add_deleted_created_at_updated_at.sql

@@ -1,19 +1,18 @@
-ALTER TABLE MEMBERS
+ALTER TABLE members
     ADD COLUMN created_at DATETIME(6);
 
-ALTER TABLE MEMBERS
+ALTER TABLE members
     ADD COLUMN updated_at DATETIME(6);
 
-UPDATE MEMBERS
+UPDATE members
 SET created_at = CURRENT_TIMESTAMP(6),
     updated_at = CURRENT_TIMESTAMP(6);
 
-ALTER TABLE MEMBERS
+ALTER TABLE members
     MODIFY COLUMN created_at DATETIME(6) NOT NULL;
 
-ALTER TABLE MEMBERS
+ALTER TABLE members
     MODIFY COLUMN updated_at DATETIME(6) NOT NULL;
 
-
 alter table members
     add column is_deleted boolean not null default false;