fix(abstract-utxo): pass actual wallet to signTransaction

Issue: BTC-1450

Author: OttoAllmendinger

modules/abstract-utxo/src/abstractUtxoCoin.ts

@@ -296,6 +296,7 @@ type UtxoBaseSignTransactionOptions<TNumber extends number | bigint = number> =
    * transaction (nonWitnessUtxo)
    */
   allowNonSegwitSigningWithoutPrevTx?: boolean;
+  wallet?: UtxoWallet;
 };
 
 export type SignTransactionOptions<TNumber extends number | bigint = number> = UtxoBaseSignTransactionOptions<TNumber> &