Does giving blood plasma reduce my muscle grow process when working out?

No. There is no medical evidence of blood plasma reducing muscle growth when working out.
No, it should not. Blood plasma has lots of good stuff in it, mainly valuable proteins but also "clotting factors" that are needing to regulate how blood clots. A healthy person has plenty of plasma, and can easily make more plasma after he gives a donation. He should not experience medical symptoms as long as he stays properly hydrated during exercise and doesn't exert himself until a day after his donation.