Fix Updater when used with cache

Currently the updater will not work properly because it has been cached by our users, but had a bug where, when the update occurs, it does not properly delete the cache file.  Therefore, the cache will never be updated, therefore the updater will never be updated.

This PR fixes that problem by always pulling the updater commands directly from disk, even if the rest of shellwreck has been cached.

As a necessary step, the cache is also forcibly disabled for all users for 1-2 weeks while everyone's systems auto-update and clear the current caches.