Investigate how to remove spawn_blocking from forge code

[cptartur]

No description provided.

[piotmag769]

https://stackoverflow.com/a/62536772
In short: there is no way to spawn a runtime from a runtime, tokio seems to check that. That's why we have to use spawn blocking which uses another thread pool. However we can try to use Handle to avoid creating additional runtimes
https://docs.rs/tokio/latest/tokio/runtime/struct.Handle.html#method.spawn

[MaksymilianDemitraszek]

We could consider either implementing some sophisticated strategy of collecting the required data and then batching requests together. Though in my opinion this is not worth the effort atm. Otherwise we would need an async cairo vm which is not feasible.

@Draggu @Arcticae closing it for now as I don't think it will worth the effort.