If it's even possible, here's several things to look into.
There's two trim levels in the new 2022 regular Bolt, 1LT and 2LT.
In both models, the only interior color is Black, so you will get all black seats, if you want to put them in an older Bolt.
Totally black seats may not match your existing back seat color.
Then, depending if you had Premier or not in your old car, you either have cloth or leather seats.
If you want leather seats, those have to come from the 2LT model, and that model has power seats in the new 2022.
Unless they will sell you the seats without the motors, I would think that would be extremely expensive, and then your old car almost certainly does not have the correct power cables to run those seats.
If you don't have power, there's no way to adjust them, like up/down, forward/back.
If you go for the base level seats in cloth, again in all black, you would also need to be certain to order the trim moldings and handles that go to the seat to make adjustments, since they possibly could be different than the older model, certainly the trim would also be black.
Unless GM shows a supported way to do a conversion like that, you might have a bunch of trial and error figring out exactly how much you would need to order to make it work.
I do admire the idea to do it, though.
The seats on the 2022 Bolt EV are supposed to be wider and more comfortable.
Does anyone know if they will be backwards compatable with the 2021 and 2020 models?
The 2021 seats are too narrow and uncomfortable for me.