[ENHANCEMENT] Improve untriaged label workflow to ignore issues created by maintainers

[joshuarrrr]

Is your feature request related to a problem?

We use the untriaged workflow to add the untriaged label to all new issues, as described in #133

This is a good mechanism to ensure each repository has the right processes in place to routinely triage issues, where the label is manually removed. It also supports accountability, because we can simply check for untriaged issues that have had that label for some time.

But this does add unnecessary overhead to maintainers, who often create the majority of all issues in a repository, particularly when breaking down large epics or initiatives into subtasks. This can lean to temporary spikes in the untriaged metrics until the newly created issues are manually cleaned up.

What solution would you like?

By definition, a triaged issue is one which maintainers have deemed valid. So the untriaged workflow should simply skip any issues created by maintainers. I'm not sure of the best programmatic way to access the maintainer list from within the workflow, but suspect that the newly baselined CODEOWNERS files will help.

What alternatives have you considered?

None so far.

Do you have any additional context?

Related to #102

[dblock]

It would be amazing to turn the untriaged workflow into a proper GitHub app similar to DCO with features such as this one, so we don't have to configure a manual workflow in every repo.

[peternied]

This can lean to temporary spikes in the untriaged metrics until the newly created issues are manually cleaned up.

Sounds like you are trying to 'game' the graph, could you provide more detail on where is that graph is and how your team acts on it?

For the repos I maintain there are no graphs that we monitor; we use GitHub queries during our weekly triage [1].

• Security Team Triage Agenda [1] https://github.com/opensearch-project/security/blob/main/TRIAGING.md#is-there-an-agenda-for-each-week

[ashwin-pc]

Opensearch Dashboards has solved this issue like this. opensearch-project/OpenSearch-Dashboards#6193

[dblock]

We'd have to edit 100+ workflows :( It would be really great to have a bot that does this across the entire org.