** 로그인 요청 api **
<https://lets-team-project.herokuapp.com/api/auth/signin>
{
"timestamp": "2022-01-24T16:14:08.8101986",
"error": "BAD_REQUEST",
"message": "로그인 정보[SOCIAL_LOGIN_ID, AUTH_PROVIDER]가 올바르지 않습니다."
}
** 회원가입 요청 url **
<https://lets-team-project.herokuapp.com/api/auth/signup>
~~https://lets-team-project.herokuapp.com/oauth2/authorization/[google|github|kakao]로 요청~~

