Spike CI configuration for dbt-score

[dfsnow]

Another company recently open-sourced their dbt metadata linter called dbt-score. Since our data catalog is starting to grow and we heavily utilize dbt's metadata features, we should try a simple spike of this linter to see if it adds value for us. This would involve setting up a configuration file and a sample GitHub Actions workflow.

We should also consider adding some custom rules for the linter, including:

• Column keys for models/sources should be in alphabetical order. See #209.
• All models should reference doc blocks
• All tags should intersect a known set

[jeancochrane]

Another custom rule idea:

• All data tests should have a meta.description attribute