chore: Fix indent in porter-int-yaml

[troy0820]

What does this change

Fix indent to see if integration test show up in the pipeline

What issue does it fix

If there is not an existing issue, please make sure we have context on why this change is needed. See our Contributing Guide for examples of when an existing issue isn't necessary.

Notes for the reviewer

Put any questions or notes for the reviewer here.

Checklist

• Did you write tests?
• Did you write documentation?
• Did you change porter.yaml or a storage document record? Update the corresponding schema file.
• If this is your first pull request, please add your name to the bottom of our Contributors list. Thank you for making Porter better! 🙇‍♀️

Reviewer Checklist

• Comment with /azp run test-porter-release if a magefile or build script was modified
• Comment with /azp run porter-integration if it's a non-trivial PR