feat: 헬스 체크 엔드포인트 추가 (#258)

- spring actuator의 health check 엔드포인트 추가

Author: 7zrv

src/main/resources/application.yml

@@ -129,7 +129,7 @@ management:
   endpoints:
     web:
       exposure:
-        include: prometheus
+        include: health, prometheus
 
   endpoint:
     prometheus: