Kick pr linter when milestoned and demilestoned

[shuheiktgw]

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• PR has at least one valid label: bug, enhancement, refactoring, documentation, tooling, and/or dependencies
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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.49%. Comparing base (53c0d8c) to head (677728d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1693   +/-   ##
=======================================
  Coverage   49.49%   49.49%           
=======================================
  Files         218      218           
  Lines       21244    21244           
=======================================
  Hits        10515    10515           
  Misses      10182    10182           
  Partials      547      547           

Flag	Coverage Δ
unittests	49.49% <ø> (ø)

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[shuheiktgw]

I realized pull_request_target does not have milestoned and demilestoned...

• https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#pull_request_target