feat: @EnableJpaAuditing 추가

Jpa Auditing 활성화

server/src/main/java/com/ticketing/server/ServerApplication.java

@@ -2,7 +2,9 @@ package com.ticketing.server;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
+@EnableJpaAuditing
 @SpringBootApplication
 public class ServerApplication {
 

server/src/test/java/com/ticketing/server/ServerApplicationTests.java

@@ -2,8 +2,10 @@ package com.ticketing.server;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 @SpringBootTest
+@EnableJpaAuditing
 class ServerApplicationTests {
 
 	@Test