Enhance the stability of Azure VM Spec lookup and validation during MCI creation

[MZC-CSC]

What would you like to be enhanced
: What would you like to be enhanced : MCI Creation Stability for Multi-CSP Deployments (Azure VM Provisioning Failure) (다중 CSP 조합 MCI 배포 시 Azure VM 프로비저닝 안정성 강화)

Why is this needed
: The issue is blocking the creation of MCIs, specifically when provisioning Azure VMs as part of a multi-CSP deployment configuration.

Problem: The VM Spec successfully passes the initial validation phase but subsequently fails during the actual VM creation (provisioning) phase.

Error Detail:

2025-11-24T13:46:20.819495613Z 1:46PM ERR src/core/resource/spec.go:367 > error="Get http://mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2: context deadline exceeded (Client.Timeout exceeded while awaiting headers) (from mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2)"
2025-11-24T13:46:20.819531365Z 1:46PM ERR src/core/infra/provisioning.go:2426 > Spec validation failed for Standard_B2als_v2 error="Get http://mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2: context deadline exceeded (Client.Timeout exceeded while awaiting headers) (from mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2)"
2025-11-24T13:46:20.819542608Z 1:46PM ERR src/core/infra/provisioning.go:2460 > Resource validation failures error="validation failed for VM 'g7': spec 'Standard_B2als_v2' is not available in connection 'azure-koreacentral': Get http://mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2: context deadline exceeded (Client.Timeout exceeded while awaiting headers) (from mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2)"
2025-11-24T13:46:20.819642624Z 1:46PM ERR src/core/infra/provisioning.go:2393 > error="validation failed for VM 'g7': spec 'Standard_B2als_v2' is not available in connection 'azure-koreacentral': Get http://mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2: context deadline exceeded (Client.Timeout exceeded while awaiting headers) (from mc-infra-connector:1024/spider/vmspec/Standard_B2als_v2)"

[seokho-son]

@MZC-CSC 이슈 공유 감사합니다. (cc @innodreamer )

일단, 저도 다중 CSP 구성으로 방금 다시 테스트 해봤는데,
해당 오류가 발생하지 않아서, 일단 간단히 추가적으로 문의를 드립니다.

1. Azure 단독 구동시에는 해당 문제가 발생하지 않는지요?
2. 여러번 (2번 이상) 시도해도 동일한 현상이 발생하는지요?

(테스트 요청 구성)

(생성 결과)