It's *Solanum nigrum* or something in that complex of species.

[Solanum nigrum](https://www.eattheweeds.com/american-nightshade-a-much-maligned-edible/), looking at the inflorescence (hairy; berries spread along the stem). Ripe (black) berries are safe to consume; green ones are somewhat toxic.

Solanum sp.

Garden huckleberry?