Add comment to clarify intentional use of API key in Action-Test workflow

Author: MariusStorhaug

.github/workflows/Action-Test.yml

@@ -39,5 +39,5 @@ jobs:
         with:
           Name: PSModuleTest
           WorkingDirectory: tests
-          APIKey: ${{ secrets.APIKEY }}
+          APIKey: ${{ secrets.APIKEY }} # zizmor: ignore[secrets-outside-env] saved in org secrets as an intentional choice
           WhatIf: true