title: Just deploy cloudformation changes with serverless framework for AWS
body: <p>I am making changes just to custom resources in my serverless.yml with an AWS provider.  The package from the lambda code is not changing, it's already uploaded to S3 from a previous deploy.</p>
  
  <p>How can I say "use the artifacts already in S3, just upload the changed cloudformation template and update the stack using that"?</p>