Re-enable GitHub permissions monitoring when practical

# 💡 Summary #

In #148 we disabled GitHub permissions monitoring because [this functionality](https://github.com/GitHubSecurityLab/actions-permissions/tree/main/monitor) 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.