docs: auto update terraform docs

Author: forest-pr[bot]

examples/ephemeral/README.md

@@ -61,6 +61,7 @@ terraform output webhook_secret
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| <a name="input_aws_region"></a> [aws\_region](#input\_aws\_region) | AWS region. | `string` | `"eu-west-1"` | no |
 | <a name="input_environment"></a> [environment](#input\_environment) | Environment name, used as prefix | `string` | `null` | no |
 | <a name="input_github_app"></a> [github\_app](#input\_github\_app) | GitHub for API usages. | <pre>object({<br>    id         = string<br>    key_base64 = string<br>  })</pre> | n/a | yes |