[api] 서버 포트 설정

src/main/resources/application.yaml

@@ -1,3 +1,5 @@
+server:
+  port: 8001
 spring:
   application:
     name: api

src/main/resources/banner.txt

@@ -14,3 +14,5 @@ Application : ${spring.application.name}
 Profile     : ${spring.profiles.active}
 Spring Boot : ${spring-boot.version}
 Java        : ${java.version}
+Port        : ${server.port}
+PID         : ${PID}