Update FFI

[Stebalien]

Proposed Changes

• Updates rust-fil-proofs to v12.
• Updates the FVM to 1.2 (no change, just updated proofs).
• Remove actors v6 v7 bundle from the FFI (previously used for FVM testing)

Checklist

Before you mark the PR ready for review, please make sure that:

• All commits have a clear commit message.
• The PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, INTERFACE BREAKING CHANGE, CONSENSUS BREAKING, build, chore, ci, docs,perf, refactor, revert, style, test
  • area: api, chain, state, vm, data transfer, market, mempool, message, block production, multisig, networking, paychan, proving, sealing, wallet, deps
• This PR has tests for new functionality or change in behaviour
• If new user-facing features are introduced, clear usage guidelines and / or documentation updates should be included in https://lotus.filecoin.io or Discussion Tutorials.
• CI is green

[ZenGround0]

Remove actors v6 bundle from the FFI (previously used for FVM testing)

After a quick scan it looks like this removes v7 not v6, does that sound right?

[Stebalien]

After a quick scan it looks like this removes v7 not v6, does that sound right?

Ah, yes, you're right.

[jennijuju]

@Stebalien terrible