So i Don't know Anything About Coding But i Do Know Scratch so i Was Wondering if i Could Make a Scratch Game For The Jam

No, you can't

I'm not sure why some people  are telling you that you can't make a scratch game, even though it is entirely possible to get a scratch game running on the itch io website , I myself have done it. however you could also use stencyl which is a downloadable game engine that is based off of scratch.

All game engines are allowed.

Like Manu said, I'm pretty sure all game engines are allowed, I'd move away from scratch asap If I was you though