Loosen dependency requirements in `packages.yml`

[waligob]

Describe the feature

Providing a range of supported package versions for dbt_utils would allow for dbt_project_evaluator to be installed alongside other packages much more easily. Currently, dbt_project_evaluator is pinned to the 0.8.6 patch version of dbt_utils, which heavily constrains the dependency graph of compatible package versions when installed in conjunction with other packages.

Describe alternatives you've considered

The alternative is to only install dbt_project_evaluator alongside packages that are compatible with the pinned patch versions.

Additional context

N/A

Who will this benefit?

Users who are attempting to update their dbt packages on a regular cadence in order to adopt the latest features and bugfixes.

Are you interested in contributing this feature?

I haven't contributed before. I would be happy to help, but I would need a hand getting started.