Merge pull request #162 from SWU-Elixir/test/158-auth

test: 테스트 코드 내 권한 이름 수정 (ROLE_USER -> USER)

Author: seoyeon83

src/test/java/BE_Elixir/Elixir/domain/auth/service/AuthServiceTest.java

@@ -72,7 +72,7 @@ void setUp() {
                 .email("test@test.com")
                 .password("encoded-password")
                 .loginType(LoginType.LOCAL)
-                .roles(Collections.singletonList("ROLE_USER"))
+                .roles(Collections.singletonList("USER"))
                 .build();
 
         memberDetails = MemberDetails.builder()