[Fix] AWS Credential 시크릿에서 주입받아 배포하도록 수정 (#548)#549

geniusYoo merged 2 commits intodevsopt-makers/sopt-backend:devfrom

fix/#548-modify-aws-credential-strategysopt-makers/sopt-backend:fix/#548-modify-aws-credential-strategyCopy head branch name to clipboard