Keke Palmer is in a vulnerable place right now. She has been since dropping her revealing “Big Boss” visual album back in May, which marked her first studio release in almost a decade. She had a lot to get off her chest then and even today, as the 10-track album has just been upgraded with a deluxe version, which arrived on Oct. 20. No, the extended LP does not address Palmer’s busy summer — which consisted of everything from relationship drama with her child’s…