feat: Release rpc_state_reader on crates.io

[pistomat]

The crate rpc_state_reader is not exposed in starknet_in_rust and therefore one needs to import it in Cargo.toml with

[dependencies]
rpc_state_reader = { git = "https://github.com/lambdaclass/starknet_in_rust.git", package = "rpc_state_reader", tag = "v0.4.0"}

Could you either re-export it in the starknet_in_rust package or release as a standalone crate on crates.io to avoid importing rpc_state_reader straight from git?