Unable to create a table with Sort Key about dynalite

[the-wondersmith]

@justindra I ran into this same issue and ended up creating a patch for it. I've created a PR for said patch, hopefully @mhart or someone else with merge authority will see it. I can't promise that it's correct (as I'm primarily a Python/Rust programmer and am only passable in JS), but I can assure that it does work.

If you need the change like right now, I think you can either manually apply the patch to the source files in your local (global) node modules or you can tell npm to use my branch instead of mainline Dynalite until the patch is merged (assuming it does in fact get merged).