Migration: CSR (Cloud Source Repositories) EOL June 2024 - move to SSM (Secure Source Manager) as default CICD repository

[obriensystems]

part of TEF V5 tracking https://github.com/terraform-google-modules/terraform-example-foundation/labels/v5.0
CSR is undergoing deprecation in favour of SSM

• https://cloud.google.com/source-repositories/docs/authentication
• https://cloud.google.com/secure-source-manager/docs/overview

Impact to CICD

• will affect the CB/CSR default option in the TEF LZ - primarily 0-bootstrap
• will not affect incoming ADO option in Add Azure DevOps ADO as build and repository option #399
• shadow FR: CSR (Cloud Source Repositories) EOL June 2024 - replace the default path for version control system and CICD tool terraform-google-modules/terraform-example-foundation#1249

Cloud Source Repositories is scheduled for end of sale on June 17, 2024. Starting June 17, 2024, if your organization hasn't previously used Cloud Source Repositories, you cannot enable the API or use Cloud Source Repositories. New projects not connected to an organization can’t enable the Cloud Source Repositories API after June 17, 2024. Customers who have already enabled the API prior to this date will not be affected and can continue to use Cloud Source Repositories.

[github-actions]

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