GitHub Action to add/remove triage labels as-needed

[dbeatty10]

resolves #74

Description & motivation

What?

When the maintenance team triages, we sometimes need more information from the issue creator. In
those cases we remove the triage label and add the awaiting_response label. Once we
receive a response in the form of a comment, we want the awaiting_response label removed
in favor of the triage label so we are aware that the issue needs action.

Why?

To help with out team triage issue tracking

When?

This will run when a comment is added to an issue and that issue has the awaiting_response label.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a37ea5b) 52.23% compared to head (08bc652) 52.23%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #77   +/-   ##
=======================================
  Coverage   52.23%   52.23%           
=======================================
  Files          49       49           
  Lines        2866     2866           
=======================================
  Hits         1497     1497           
  Misses       1369     1369           

Flag	Coverage Δ
unit	52.23% <ø> (ø)

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