Fix instruction error serialization 0.2.1

[levicook]

Fixes

Failed to parse transactions for signatures, error: SerdeJson(Error("missing field `InstructionError`", ...))

Encountered when calling helius::Helius.parse_transactions ala:

        match state.helius.parse_transactions(req).await {
            Ok(transactions) => {
                for transaction in transactions {
                    crate::enhanced_transactions::ingest_essentials(&state, transaction).await?;
                }
            }

[levicook]

@0xIchigo -- I just patched the release version I was locked into. No idea if this was fixed later, so consider this draft an FYI.

[levicook]

also noticed that instruciton_error is misspelled after looking at it a hundred other times.

[0xIchigo]

@levicook nice catch! This hasn't been fixed yet, so feel free to mark the PR as ready for review. Also, feel free to update the spelling of instruction_error

[levicook]

sounds good! corrected the typo & marked ready for review.

[0xIchigo]

Based 🔥