Updated installation schema with correct dependency schema

[sgettys]

Signed-off-by: Steven Gettys [email protected]

What does this change

Update the dependency schema for v1 manifests

Notes for the reviewer

Extended the current schema unit test to validate a manifest that has dependencies defined in it

This is a breaking change for v1.0.0-alpha.20 and previous

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

[carolynvs]

Thanks for fixing this! 🙇‍♀️