(PUP-8008) monkey patch spec_helper_acceptance

Calls to the forge to get the latest version of the apt module (postgres depends on apt) are failing because of a problem we cannot fix quickly enough (PUP-8008) so this monkey patch will have to do for now. This overloads a method in the module_install_helper to knock apt out of the dependencies list and then install v4.1.0 'manually'