Re-enable GitHub permissions monitoring when practical

[jsf9k]

💡 Summary

In #223 we disabled GitHub permissions monitoring because this functionality is poorly implemented and has been causing GitHub actions workflows to fail or hang due to the MITM implementation hogging or leaking memory. This functionality should be re-enabled when this becomes practical.

Motivation and context

It is useful to monitor GitHub permissions so ensure that we allow only the minimal required permissions. Once we can do so without unnecessary workflow failures we should.