Chore: DDL_AUTO docker-compose.stg.yml 환경변수 추가

Author: lunarbae628

infra/docker-compose.stg.yml

@@ -16,6 +16,7 @@ services:
       SERVER_SERVLET_SESSION_COOKIE_NAME: ${SESSION_COOKIE_NAME}
       SERVER_SERVLET_SESSION_COOKIE_DOMAIN: ${SESSION_COOKIE_DOMAIN}
       SPRINGDOC_SWAGGER-UI_SERVERS_URL: ${SWAGGER_SERVER_URL}
+      SPRING_JPA_HIBERNATE_DDL_AUTO: ${DDL_AUTO}
     depends_on:
        mysql:
           condition: service_healthy