Optimism (0x7e) transaction is not RLP decoded

[DaniPopes]

Version
cdb7802

Platform
All

Description
Originally reported by @IcedewW in TG: https://t.me/ethers_rs/32701

Tx type 0x7e is not handled when RLP decoding a Transaction:

ethers-rs/ethers-core/src/types/transaction/response.rs

Lines 403 to 413 in cdb7802

 match first { 
     0x01 => { 
         txn.decode_base_eip2930(&rest, &mut offset)?; 
         txn.transaction_type = Some(1u64.into()); 
     } 
     0x02 => { 
         txn.decode_base_eip1559(&rest, &mut offset)?; 
         txn.transaction_type = Some(2u64.into()); 
     } 
     _ => return Err(DecoderError::Custom("invalid tx type")), 
 } 

cc @refcell @merklefruit @ncitron who worked on this in the past