fixes terraform backstage errors (fixes #202)

[jritsema]

Description

Resolves errors in the latest terraform backstage fargate example.

Motivation and Context

Resolves issue #202

How Has This Been Tested?

• I have tested and validated these changes using one or more of the provided examples/* projects
• I have executed pre-commit run -a on my pull request

running pre-commit returned the following, but seems to be related to a different example.

Terraform validate.......................................................Failed
- hook id: terraform_validate
- exit code: 1

Validation failed: terraform/cicd-examples/lb-service-container-pipeline
╷
│ Error: Missing required provider
│ 
│ This configuration requires provider registry.terraform.io/hashicorp/aws,
│ but that provider isn't available. You may be able to install it
│ automatically by running:
│   terraform init
╵
╷
│ Error: Missing required provider
│ 
│ This configuration requires provider
│ registry.terraform.io/hashicorp/random, but that provider isn't available.
│ You may be able to install it automatically by running:
│   terraform init
╵