[BUG] AutoUpdatesAction should rely on Device.auto_upgrades_enabled

[rptrchv]

No description provided.

[a-martynovich]

The problem is that Device.auto_upgrades does not contain enough info, that's why we have Device.auto_upgrades_enabled() which makes the final decision.
@rptrchv I believe it would be easier to either fix this in agent or to make the final decision during generate_recommended_actions() or even during ping, store it in Device.auto_upgrades and drop Device.auto_upgrades_enabled().