adding private_dataset field to the warehouse Staging, Intermediate, …

[fsalemi]

Description

In this PR I added private_dataset field to the data-infra warehouse Staging, Intermediate, and Mart gtfs_datasets. I also updated the related YML file with the description about this field and its purpose. This field was already added to the external table gtfs_datasets per this PR

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation

How has this been tested?

poetry run dbt test poetry run dbt compile poetry run dbt docs generate poetry run dbt run -s +dim_gtfs_datasets

Post-merge follow-ups

• [ ] No action required
• [x] Actions required (specified below) The next step is to add a filter to the weekly gtfs_schedule_latest bundle to suppress the feeds on the base of this field.

[vevetron]

Can you run a specific test for the last model changed? dim_gtfs_datasets.sql