Updates to bundle schema v1.0.1

[carolynvs]

What does this change

• Default schemaVersion to 1.0.1. Now when someone in VS Code inserts a schemaVersion field it is defaulted to 1.0.1 for them automatically.
• Fix typo in spelling of definition
• Provide better json schema for dependency parameters, previously we only defined it as an object. I've added a description and requires the parameter keys to be strings

What issue does it fix

Just minor gaps in our current manifest schema that I found when updating the schema for PEP003

Notes for the reviewer

N/A

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