fix: thorchain swapper

[0xApotheosis]

Description

Fixes a production issue that prevents users from trading UTXOs.

Regression in #6177.

Summary of the issue:

• An isAddress(address) check was added to the isSmartContractAddress query enabled logic
• For UTXOs, this will return false, and so the isSmartContractAddress query will not fire
• This means the data returned from the useIsSmartContractAddress hook is undefined
• Because we fail closed (intentional, for safety) in downstream logic consuming smart contract checks (i.e. if we can't confirm it isn't a smart contract, we assume it is), we thus fail on undefined (UTXO "addresses")

Pull Request Type

• 🐛 Bug fix (Non-breaking Change: Fixes an issue)
• 🛠️ Chore (Non-breaking Change: Doc updates, pkg upgrades, typos, etc..)
• 💅 New Feature (Breaking/Non-breaking Change)

Issue (if applicable)

Closes #6258

Risk

High Risk PRs Require 2 approvals

Medium - getting the wrong prevents users from trading, though ideally this PR makes things right und unbreaks thorchain.

What protocols, transaction types or contract interactions might be affected by this PR?

• Namely: any swapper/LP/lending transaction that deals with UTXOs
• But also, any swapper/LP/lending transaction

Testing

• Trades to and from UTXOs should work (EVMs should still work, too!)
• Deposits into LPs should work
• Deposits/withdraws into/from THORChain lending should work

Engineering

☝️

Operations

☝️

Screenshots (if applicable)