test(user): 객체간 동등 비교 추가

Author: m-a-king

src/test/java/com/somemore/user/repository/usercommonattribute/UserCommonAttributeRepositoryImplTest.java

@@ -30,6 +30,8 @@ void saveUserCommonAttribute() {
 
         // then
         assertThat(savedUserCommonAttribute).isNotNull();
+        assertThat(savedUserCommonAttribute).isEqualTo(userCommonAttribute);
+
         assertThat(savedUserCommonAttribute.getId()).isNotNull();
         assertThat(savedUserCommonAttribute.getUserId()).isEqualTo(userId);
         assertThat(savedUserCommonAttribute.getImgUrl()).isEqualTo(ImageUploadService.DEFAULT_IMAGE_URL);