Publish Terraform modules to self-hosted registry

[GavinFrazar]

Set up CI/CD pipeline to publish our Terraform modules.

Use the same domain and s3 bucket that hosts our Teleport Terraform provider registry.

For reference, we currently publish to the following domains:

• prod:
  • https://terraform.releases.teleport.dev
  • https://terraform-staging.releases.teleport.dev
• staging:
  • https://terraform.releases.development.teleport.dev
  • https://terraform-staging.releases.development.teleport.dev

Related:

• Create Terraform module for auto-discovery in 1 AWS account #60810
• Create Terraform module for auto-discovery in 1 Azure account #60818