[AWS::ApiGateway::Stage] - [Docs] - DeploymentId wrongly stated as not required

### Name of the resource

AWS::ApiGateway::Stage

### Resource name

AWS::ApiGateway::Stage

### Reference Link

https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-apigateway-stage.html#cfn-apigateway-stage-deploymentid

### Details

It is a required parameter though. See [API docs](https://docs.aws.amazon.com/apigateway/latest/api/API_CreateStage.html).

And without it, you get the error during deployment:

> Resource handler returned message: "DeploymentId cannot be empty" (RequestToken: d3e94518-cddb-c6d9-8743-f0cb5e8f8b59, HandlerErrorCode: InvalidRequest)

Start with the linked CloudFormation reference for AWS::ApiGateway::Stage and compare the DeploymentId property with the linked API CreateStage documentation. Update the reference so its required status matches the documented API behavior, then verify that the property description no longer says it is optional.

Written by the indexing model from the issue text.