More info for update on admin dashboard

Description

I've noticed when there is something that needs updating that in the admin panel it shows the message.

"Update Available"

But it doesn't really show info more info then that. Would be nice that the list on the "Components menu" would highlight which item needs upgrading. For people who are using gitlab and docker it would be nice to see what we need to update.

Unless i'm overseeing a already feature that i've missed i would love to see this implemented if it can.

Proposal

See #20371 (comment 215091937) as a tentative implementation goal