Stage 환경 ECS 리소스 조정

[donghun1214]

Describe the problem and solution

현재 stage 환경에 있는 CPU 와 Memory 스펙을 Production 환경에 맞게 제한하였습니다.

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guidelines
• [X] Check that there isn't already an issue