DMS-Backend merge: (#774) 봉사 활동 목록 조회 Response 에 CurrentApplicants 추가

작업 내용 설명

[x] response에 currentApplicants 필드 추가
[x] 학생 조회 response에 status 필드 추가

주요 변경 사항

VO 추가
Response of 메서드의 매개 변수 클래스를 VO 로 변경
status ENUM 추가 (노션에 명세 해놨습니다)
response 에 status가 추가됨에 따라 approved 필드를 제거
쿼리의 반환값을 List<Pair<>> 에서 List<Triple<>> 로 변경
현재 봉사자에 따른 신청제약은 서버에서 처리하지 않습니다.

결과물

체크리스트

[x] 어플리케이션 구동(혹은 테스트)시 오류는 없나요?
[ ] 생성된 코드에 Javadoc 주석을 추가 하였나요?
[ ] 생성된 코드에 대한 테스트 코드가 작성 되었나요?

Codecov Report

Attention: Patch coverage is 0% with 129 lines in your changes missing coverage. Please review.

Project coverage is 3.11%. Comparing base (13045c9) to head (3cf2c2c). Report is 5 commits behind head on develop.

Files with missing lines	Patch %	Lines
...domain/volunteer/dto/response/VolunteerResponse.kt	0.00%	30 Missing :warning:
...rsistence/volunteer/VolunteerPersistenceAdapter.kt	0.00%	25 Missing :warning:
...olunteer/spi/vo/VolunteerWithCurrentApplicantVO.kt	0.00%	23 Missing :warning:
...ository/vo/QueryVolunteerWithCurrentApplicantVO.kt	0.00%	13 Missing :warning:
...olunteer/VolunteerApplicationPersistenceAdapter.kt	0.00%	9 Missing :warning:
...main/volunteer/model/VolunteerApplicationStatus.kt	0.00%	8 Missing :warning:
...omain/volunteer/service/GetVolunteerServiceImpl.kt	0.00%	7 Missing :warning:
...omain/volunteer/usecase/UnapplyVolunteerUseCase.kt	0.00%	6 Missing :warning:
...in/volunteer/spi/vo/CurrentVolunteerApplicantVO.kt	0.00%	2 Missing :warning:
.../repository/vo/QueryCurrentVolunteerApplicantVO.kt	0.00%	2 Missing :warning:
... and 4 more

Additional details and impacted files

@@             Coverage Diff              @@
##             develop    #775      +/-   ##
============================================
- Coverage       3.14%   3.11%   -0.04%     
  Complexity        85      85              
============================================
  Files            653     656       +3     
  Lines           9144    9240      +96     
  Branches         212     215       +3     
============================================
  Hits             288     288              
- Misses          8847    8943      +96     
  Partials           9       9

Files with missing lines	Coverage Δ
...olunteer/usecase/ManagerGetAllVolunteersUseCase.kt	`0.00% <0.00%> (ø)`
...lunteer/usecase/QueryAvailableVolunteersUseCase.kt	`0.00% <0.00%> (ø)`
.../team/aliens/dms/global/security/SecurityConfig.kt	`0.00% <0.00%> (ø)`
...aliens/dms/domain/volunteer/VolunteerWebAdapter.kt	`0.00% <0.00%> (ø)`
...in/volunteer/spi/vo/CurrentVolunteerApplicantVO.kt	`0.00% <0.00%> (ø)`
.../repository/vo/QueryCurrentVolunteerApplicantVO.kt	`0.00% <0.00%> (ø)`
...omain/volunteer/usecase/UnapplyVolunteerUseCase.kt	`0.00% <0.00%> (ø)`
...omain/volunteer/service/GetVolunteerServiceImpl.kt	`0.00% <0.00%> (ø)`
...main/volunteer/model/VolunteerApplicationStatus.kt	`0.00% <0.00%> (ø)`
...olunteer/VolunteerApplicationPersistenceAdapter.kt	`0.00% <0.00%> (ø)`
... and 4 more

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