Don't surface implicitly run connector-level models in Quickstart

[fivetran-jamie]

PR Overview

Package version introduced in this PR:

• 2.7.2

This PR addresses the following Issue/Feature(s):

• https://fivetran.atlassian.net/browse/GA-1031775

Summary of changes:

• For individual sources, only surfaces public_models that are not referenced by Ad Reporting models at all. This includes 2 Google Ads models and 1 Amazon Ads report.

Submission Checklist

• Alignment meeting with the reviewer (if needed)
  • Timeline and validation requirements discussed
• Provide validation details:
  • Validation Steps: Check for unintentional effects (e.g., add/run consistency & integrity tests)
  • Testing Instructions: Confirm the change addresses the issue(s)
  • Focus Areas: Complex logic or queries that need extra attention
• Merge any relevant open PRs into this PR

Changelog

• Draft changelog for PR
• Final changelog for release review

[fivetran-catfritz]

lgtm