Cloud/Terraform/UpgradeFrom0.13

Older Terraform state files need a upgrade (format change) going past version 0.13.0
Update terraform version to v0.13.7

State apply to test all is still good, fixing errors

Error

Initializing the backend...
Error: error configuring S3 Backend: no valid credential sources for S3 Backend found.
Please see https://www.terraform.io/docs/backends/types/s3.html
for more information about providing credentials.
Error: NoCredentialProviders: no valid providers in chain. Deprecated.
        For verbose messaging see aws.Config.CredentialsChainVerboseErrors
ERRO[0009] 1 error occurred:
        * exit status 1

Fix: Can't use sso, with old version set env vars.

export AWS_ACCESS_KEY_ID="AS...FB"
export AWS_SECRET_ACCESS_KEY="PR...di"
export AWS_SESSION_TOKEN="IQoJb......xJ/"

Run upgrade

 $ tfswitch 0.13.7
 $ tg init && tg 0.13upgrade

Test newer version
```
 $ tfswitch 1.1.9
 $ tg init && tg plan
```