[Enhancement] Figure out a way to throw a lookup error when there aren't enough state-roots.

[ruseinov]

Issue summary

The current problem is that we get a state mismatch on both lotus and forest if we don't have enough state-roots to compute something, instead of throwing a lookup error.

Other information and links

How to reproduce:

1. load a snapshot_2986560_2989450_1688016756.car.zst into Forest
2. cargo run --release --bin forest -- --encrypt-keystore false --import-snapshot snapshot_2986560_2989450_1688016756.car.zst --height=2987370 --head=2987371 --skip-load=true
3. State mismatch!

How to have proper state:

1. load a snapshot_2983680_2986570_1687930358.car.zst into Forest, before following the aforementioned steps.
   ..
2. No state mismatch!