refactor(service): 클래스명 리팩터링

- NEWRegisterVolunteerService를 RegisterNEWVolunteerService로 클래스명 변경
- 관련 테스트 클래스 및 필드명도 동일하게 수정

Author: m-a-king

src/main/java/com/somemore/volunteer/service/NEWRegisterVolunteerService.java renamed to src/main/java/com/somemore/volunteer/service/RegisterNEWVolunteerService.java

@@ -12,7 +12,7 @@
 @Service
 @RequiredArgsConstructor
 @Transactional
-public class NEWRegisterVolunteerService implements NEWRegisterVolunteerUseCase {
+public class RegisterNEWVolunteerService implements NEWRegisterVolunteerUseCase {
 
     private final NEWVolunteerRepository NEWVolunteerRepository;
 

src/test/java/com/somemore/volunteer/service/NEWRegisterVolunteerServiceTest.java renamed to src/test/java/com/somemore/volunteer/service/RegisterNEWVolunteerServiceTest.java

@@ -14,10 +14,10 @@
 import static org.assertj.core.api.Assertions.assertThat;
 
 @Transactional
-class NEWRegisterVolunteerServiceTest extends IntegrationTestSupport {
+class RegisterNEWVolunteerServiceTest extends IntegrationTestSupport {
 
     @Autowired
-    private NEWRegisterVolunteerService registerVolunteerService;
+    private RegisterNEWVolunteerService registerVolunteerService;
 
     @Autowired
     private NEWVolunteerRepository volunteerRepository;