codepipeline: v2 pipelines generate invalid cfn if artifacts specify a filename with a non-compute action

Describe the bug

codepipeline v2 resources fail to create if both of the following conditions are true:

• a non-compute action (such as a codebuild action) specifies output artifacts
• the output artifacts specified by said action are defined with a file path (2nd parameter to Artifact() constructor)

Regression Issue

• Select this option if this issue appears to be a regression.

Last Known Working CDK Library Version

No response

Expected Behavior

The cfn deployment should succeed, creating a pipeline that includes the specified action.

Current Behavior

The cfn deployment fails with the error message The following action cannot contain a commands field: BuildDebugAction. To use the commands field, use a compute action. The error message appears to be both irrelevant and misleading.

Reproduction Steps

const debug_apk = new Artifact("debug_apk", [debug_apk_path])
//...
const build_debug = new CodeBuildAction({
  actionName: "BuildDebugAction",
  runOrder: 1,
  input: sourceArtifact,
  project: build_debug_project,
  outputs: [debug_apk],
})

Possible Solution

When building the stack, non-compute codepipeline actions should throw an error if any specified output artifacts include file paths.

Additional Information/Context

No response

AWS CDK Library version (aws-cdk-lib)

2.270.0

AWS CDK CLI version

2.1142.0 (build a73eebf)

Node.js Version

26

OS

Arch Linux

Language

TypeScript

Language Version

tsc 6.0.3

Other information

No response