Unable to use package with dbt 0.21

[colleen-love]

When running dbt run with dbt version 0.21.0, the following error occurs:

$ dbt run
Running with dbt=0.21.0
Encountered an error:
Runtime Error
  Failed to read package: Runtime Error
    This version of dbt is not supported with the 'dbt_utils' package.
      Installed version of dbt: =0.21.0
      Required version of dbt for 'dbt_utils': ['>=0.20.0', '<0.21.0']
    Check the requirements for the 'dbt_utils' package, or run dbt again with --no-version-check

When running with $ dbt run --no-version-check any models that use postgres_utils (say, to create an index in the post-hook), fail.

The only dependency of this project (fishtown-analytics/dbt_utils) has been deprecated for another (dbt-labs/dbt_utils) - and it looks like that's what's causing this issue. My guess is that a version fix the issue.