Describe the bug

Running a Hello World CodeBuild Project consistently takes 2+ minutes to provision yet only seconds to execute. This appears to be due to the AWS CDK using aws/codebuild/standard:1.0 by default. According to the references below, the latest image for Ubuntu 18.04 is aws/codebuild/standard:4.0, and it appears that only the latest images are cached.

Expected Behavior

Per the AWS CodeBuild docs: "By default, projects use a small instance with an Ubuntu 18.04 image. You can use the environment property to customize the build environment."

I expected the default image to be cached since presumably most people new to the CDK (like me) would use the default. I further expected it to be the latest Ubuntu 18.04 image, which appears to be aws/codebuild/standard:4.0.

Current Behavior

The default image used is aws/codebuild/standard:1.0, which takes 2+ minutes to provision.

Reproduction Steps

return new Project(this, 'Project', {
  environment: {
    // Reproduce by not specifying any environment properties
  }
});

Possible Solution

I provided a value for the build image, and it reduced provisioning times to under 30 seconds, which is a substantial improvement:

return new Project(this, 'Project', {
  environment: {
    buildImage: LinuxBuildImage.STANDARD_4_0
  }
});

Additional Information/Context

No response

CDK CLI Version

2.51.1 (build 3d30cdb)

Framework Version

No response

Node.js Version

v14.18.2

OS

Mac OS Ventura 13.0.1

Language

Typescript

Language Version

No response

Other information

No response