feat(rpc): implement Filecoin.StateVerifiedRegistryRootKey

[hanabi1224]

Summary of changes

Changes introduced in this pull request:

• implement RPC method Filecoin.StateVerifiedRegistryRootKey
• API compare tests

     Running `target/quick/forest-tool api compare /home/me/fr/snapshots/calibnet/forest_snapshot_calibnet_2024-07-18_height_1798730.forest.car.zst --filter StateVerifiedRegistryRootKey`
| RPC Method                                 | Forest | Lotus |
|--------------------------------------------|--------|-------|
| Filecoin.StateVerifiedRegistryRootKey (10) | Valid  | Valid |

Reference issue to close (if applicable)

Closes #4557

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.