Package Updater Testing PR

[fivetran-jamie]

This pull request was created automatically 🎉:

• [x] Ensure .buildkite/scripts/run_models.sh has the new run-operation line
• [ ] Update the package version (currently v0.UPDATE.UPDATE) in the CHANGELOG
• [ ] Update project versions in the dbt_project.yml and integration_tests/dbt_project.yml files
• [x] Update Step 2 of the README to align either with this source package example or this transform package example