Allow slack alert tagging based on model's group owners

[jelstongreen]

Is your feature request related to a problem? Please describe. As we move to a group based dbt project, individual model ownership no longer makes sense. When a model or test fails and that model is part of a group which has assigned members and subscribers then it should alert those people.

Describe the solution you'd like If a model is part of a group then any alerts for that model should be sent to the group members / subscribers rather than be sent at a model level.

Describe alternatives you've considered Relisting the group members in the models ownership but this requires an additional touchpoint for updating group membership.

Additional context

Would you be willing to contribute this feature? Yes