chore: Fix zkforge script support

[MexicanAce]

What 💻

• Fix zkforge script for files in script/ dir

Why ✋

• So that we can use it for deployments/etc.

Evidence 📷

The current evidence for these changes include the following steps:

1. Build latest of this repo with make build-zkforge
2. Clone the zkfoundry example repo
3. cd min-example-zkfoundry
4. Run zkforge install to download the various deps
5. Test CounterScript with:

zkforge script script/Counter.s.sol:CounterScript --chain 260 --use 0.8.21

6. Test MyScript with:

zkforge script script/NFT.s.sol:MyScript --chain 260 --use 0.8.21

Notes 📝

• This branch is currently failing for any script that's using a cheatcode, e.g.CounterScript. I've left comments in the branch with where we probably need to update the use of executor.deploy to run an era call/transaction (it's a call for this case as zkforge script is not committing the call

[Karrq]

Rebased on main - scripts now work thanks to #222 :)

TODO: retrieve broadcastable txs from #201

[Karrq]

Added support to retrieve broadcastable transactions from execution.

To test it, it's necessary to specify the rpc via --rpc flag to zkforge script, as well as a wallet(s) matching the key(s) broadcasting the transactions.

[dutterbutter]

@Karrq I think some of the left over work / debugging is still present and needs to be updated to make use of the changes in main. Particularly around zk_compile, and build.rs.

[Karrq]

@dutterbutter I updated the PR based on your comments and replied wrt the async zksolc setup

[dutterbutter]

Assuming dependent on #230 @Karrq ?

[Karrq]

@dutterbutter I think we should look into merging this PR first, since the scripting itself is working.
Could you also better define for us what are you requirements for scripting? What I mean is that broadcasting (and thus deployment) is part of scripting but not required for it to work (but I do understand that scripting alone is useless).
This is so we can work on them next as separate PRs.

/cc @HermanObst

[dutterbutter]

@Karrq I think merging this in is fine and proceeding with fixing to include deployment scripts as discussed. Please address the comment regarding the default values.