data-source/aws_api_gateway_rest_api: Fixes root_resource_id not being set on correctly when REST API contains more than 25 resources (#11705)
data-source/aws_api_gateway_rest_api: Fixes root_resource_id not being set on correctly when REST API contains more than 25 resources (#11705)

Output from acceptance testing:

```
--- PASS: TestAccDataSourceAwsApiGatewayRestApi (8.62s)
```
terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws