AWS::Cloud9::EnvironmentEC2 validation logic for ImageId does not align with CloudFormation documentation

[toyotest2025]

Hello. The following point is pointed out, but it is not in line with the documentation.

template

Resources:
  TestC9:
    Type: AWS::Cloud9::EnvironmentEC2
    Properties:
      ImageId: amazonlinux-2-x86_64
      InstanceType: t2.micro
      Name: test
      SubnetId: subnet-*******

point

ImageId
[cfn-lint] E1152: 'amazonlinux-2-x86_64' is not a 'AWS::EC2::Image.Id' with pattern '^ami-([0-9a-z]{8}|[0-9a-z]{17})$'

versrion: 0.26.6

Document
https://docs.aws.amazon.com/ja_jp/AWSCloudFormation/latest/TemplateReference/aws-resource-cloud9-environmentec2.html#cfn-cloud9-environmentec2-imageid

An issue was created and fixed on cfn-lint GitHub.
aws-cloudformation/cfn-lint#4254

Please fix it in cfn-lint-visual-studio-code as well.

[r-heimann]

The cfn-lint VS Code extension uses the cfn-lint python package in the background. You need to update your local cfn-lint python package to v1.40.1 in order for the error to not show up anymore.