Upgrade to wasmer 4.3

[martyall]

What Changed

This looks worse than it is, and most of the lines are coming from the Cargo.lock file. The main changes are:

• upgrade wasmer dep from 2.3 to 4.3
• upgrade min rustc version to 1.74
• added WitnessCalculator::new_from_wasm constructor

These changes only affect witness generation using the wasm solver.

Details

The public interface is the same as before. The wasmer upgrades necessitated boilerplate changes. The high level is that any wasm module function call now takes the Store as it's first argument, so there are a lot of changes to thread that value everywhere. Also there's a slightly different way to read a wasm instance's memory which gets rid of the

        let buf = unsafe { self.memory.data_unchecked() };

pattern that was used everywhere.

Additionally I added a constructor WitnessCalculator::new_from_wasm that allows you to pass in an existing wasm instance and reuse it for multiple calls to witness generation. This is particularly useful for folding schemes where you would otherwise waste a lot of resources creating and destroying wasm instances -- something I have already experienced.