support setting artifactsOverride

[benconnito]

when triggering a codebuild project that is normally triggered from codepipeline this action sets the sourceTypeOverride and sourceLocationOverride . this is great.. however:

codebuild projects configured for codepipeline usually have Artifacts.Type: CODEPIPELINE resulting in

Error: ArtifactsOverride must be set when using artifacts type CodePipelines

we should support setting artifactsOverride.type to NO_ARTIFACTS

[aprietop]

Is there a work around to avoid this error?

[manpreet-compro]

I see changes are already merged and it is working correctly by specifying
artifacts-type-override: NO_ARTIFACTS

Is this in open state for Documentation update?

[taoyong-ty]

@manpreet-compro Thanks for the reminder! Closing this issue.

Please feel free to open a pull request for the README update, if you want.

[manpreet-compro]

Hi @taoyong-ty, I have created a pull request for README update
#159