Stock art is almost never made available for use in logos. And even when it might be, it’s wrong to sell a client a logo they will never actually own and that other people who buy the same stock art can also use.
In addition to legal issues, there are ethical problems. When someone hires a designer to create a logo, the designer needs to think through the problem and create an original solution. It can’t just be a pieced-together collection of art downloaded from the internet or copied from someone else.
I don’t know anything about you. Maybe you’re a high school kid just doing a favor for a friend. If that’s the case, nothing is likely to come of this. Professionally, though, this is the kind of thing that can get you sued. Worse still, selling things you don’t own under false pretenses amounts to fraud — a criminal, not a civil offense.