fix(dbt): dbt Cloud columns as the standard

[betodealmeida]

The schema for column metadata used by dbt Core is slightly different from the dbt Cloud response schema. For the former:

{"columns": {"customer_id": {"name": "customer_id", "description": "some description"}}}

And for the latter:

{"columns": [{"name": "customer_id", "description": "some description"}]}

Because of this, when using dbt Cloud the column metadata was not being synced. I fixed it by setting the dbt Cloud as the standard; when reading the column metadata from the manifest in dbt Core we modify the schema to match the one in dbt Cloud.

[shortcut-integration]

This pull request has been linked to Shortcut Story #68582: The CLI is not syncing column descriptions from dbt Cloud.