wallet: update TransactionChangeType

If sending to a silent payment destination, the change type should be taproot

src/wallet/wallet.cpp

@@ -2211,7 +2211,7 @@ OutputType CWallet::TransactionChangeType(const std::optional<OutputType>& chang
     bool any_pkh{false};
 
     for (const auto& recipient : vecSend) {
-        if (std::get_if<WitnessV1Taproot>(&recipient.dest)) {
+        if (std::get_if<WitnessV1Taproot>(&recipient.dest) || std::get_if<V0SilentPaymentDestination>(&recipient.dest)) {
             any_tr = true;
         } else if (std::get_if<WitnessV0KeyHash>(&recipient.dest)) {
             any_wpkh = true;