Merge pull request #136 from prgrms-web-devcourse-final-project/feature/EA3-133-study-management

[EA3-133] fix: 에러코드 오류 수정

Author: hyeunS-P

src/main/java/grep/neogul_coder/domain/study/service/StudyService.java

@@ -79,7 +79,7 @@ public StudyInfoResponse getMyStudyContent(Long studyId, Long userId) {
 
     public StudyMemberInfoResponse getMyStudyMemberInfo(Long studyId, Long userId) {
         StudyMember studyMember = Optional.ofNullable(studyMemberQueryRepository.findByStudyIdAndUserId(studyId, userId))
-            .orElseThrow(() -> new NotFoundException(STUDY_NOT_MEMBER));
+            .orElseThrow(() -> new NotFoundException(STUDY_MEMBER_NOT_FOUND));
 
         User user = userRepository.findById(userId)
             .orElseThrow(() -> new NotFoundException(USER_NOT_FOUND));