Update `forge` to more recent version

[msooseth]

Description

Some people have bumped into the issue where the new forge had issues with new forge's build not being parsed. This fixes the issue. We now:

• Use new forge internally
• Don't parse JSON's that are new and not useful for us
• Need --ast flag as per:forge build --ast. This was the default previously.
• Allow Env to be pushed down into the JSON parsing part so we can debug more effectively using --debug

This needs updater to the docs, too, due to --ast. This is unfortunate, we only need it to know the absolutePath whicih is actually a relative path like `src/multiply-test.sol"

I had to move writeTraceDapp and writeTrace because of circular dependency issues. I think putting it in EVM.UnitTest is not a bad place. Feedback welcome, though.

Checklist

• [x] tested locally
• [ ] added automated tests
• [x] updated the docs
• [x] updated the changelog

[msooseth]

Thanks for the review, it was a good catch!