No wallet type validation `createMnemonicProvider`

[i582]

Description

User input via ENV variables is not validated in createMnemonicProvider, this may result in an exception in the MnemonicProvider.createWallet method.

Steps to Reproduce

1. Call createMnemonicProvider() with WALLET_VERSION env variable set to "aaaaaa"
2. Call MnemonicProvider.createWallet()
3. Find out

Environment

No response

Logs or Screenshots

No response