Transaction type 0x03 is not implemented (EIP-4844, EIP-7594)

@matthewwalsh0

```
MetaMask - RPC Error: Invalid transaction envelope type: "0x3". Must be one of: 0x0, 0x1, 0x2, 0x4
```

We use EIP-7594 transactions to upload WASM files to Ethereum and then execute them in our network. It would be great to support this in the client for better UX.

https://eips.ethereum.org/EIPS/eip-7594

https://github.com/MetaMask/core/blob/main/packages/transaction-controller/src/utils/validation.ts
https://github.com/MetaMask/core/blob/054432d35eac17704fca9cf708387aab21e3bebc/packages/transaction-controller/src/types.ts#L1294

Start by reading packages/transaction-controller/src/utils/validation.ts and the transaction type definition around packages/transaction-controller/src/types.ts#L1294. Use EIP-7594 and EIP-4844 to understand the transaction envelope, then trace where supported types are validated. Done means the client accepts type 0x03 transactions used for WASM uploads instead of reporting an invalid envelope type.

Written by the indexing model from the issue text.