managedActiveDirectorie creation error without R53 resolver rule name

Describe the bug I am trying to create managedActiveDirectories- ms-AD standard edition as its a standalone AD ( not connecting to on-premise), i expect R53 resolverRuleName property should be optional. However if i validate the config without this property validation fails.

To Reproduce create a managedActiveDirectories with resolverRuleName property and validate the config.

Expected behavior It should create Microsoft AD- standard/enterprise edition without R53 resolver rule.

Please complete the following information about the solution:

[x] Version: [e.g. v1.4.1]

To get the version of the solution, you can look at the description of the created CloudFormation stack. For example, "(SO0021) - Video On Demand workflow with AWS Step Functions, MediaConvert, MediaPackage, S3, CloudFront and DynamoDB. Version v5.0.0". If the description does not contain the version information, you can look at the mappings section of the template:

Mappings:
  SourceCode:
    General:
      S3Bucket: "solutions"
      KeyPrefix: "video-on-demand-on-aws/v5.0.0"

[x] Region: ap-southeast-2
[x] Was the solution modified from the version published on this repository? No
[x] If the answer to the previous question was yes, are the changes available on GitHub? NA
[x] Have you checked your service quotas for the sevices this solution uses? Yes
[x] Were there any errors in the CloudWatch Logs? NA

Screenshots If applicable, add screenshots to help explain your problem (please DO NOT include sensitive information).

Additional context Add any other context about the problem here.

awslabs / landing-zone-accelerator-on-aws

managedActiveDirectorie creation error without R53 resolver rule name #226