Untag staging and intermediate models

[sydneynotthecity]

PR Checklist

PR Structure

• This PR has reasonably narrow scope (if not, break it down into smaller PRs).
• This PR avoids mixing refactoring changes with feature changes (split into two PRs
  otherwise).
• This PR's title starts with the jira ticket associated with the PR.

Thoroughness

• This PR adds tests for the most critical parts of the new functionality or fixes.
• I've updated the docs and README with the added features, breaking changes, new instructions on how to use the repository.

Release planning

• I've decided if this PR requires a new major/minor/patch version accordingly to
  semver, and I've changed the name of the BRANCH to major/* , minor/* or patch/* .

What

Addresses https://stellarorg.atlassian.net/browse/HUBBLE-576

Untags staging and intermediate models so that the models aren't unnecessarily built based on tags.

Why

Airflow executes dbt models according to tags. Some upstream models were tagged unnecessarily and rebuilt every dbt run. (ie, enriched_history_operations) this was causing dbt tests to fail if there were data delays, causing noisy alerts.

This change pushes model dependency management back into dbt. Models should be rebuilt using dbt --select +tag:<tag>. This will ensure models are only built when the downstream mart model executes, reducing noise and test execution.

Known limitations

This PR must be released with corresponding Airflow changes to introduce + node selection to dbt model execution commands. If we are pushing dependency management into dbt, the command must rebuild dependent models.