message: Update toBuffer() to toArrayLike(Buffer)
diff: @@ -614,7 +614,7 @@ export class StackingClient {
  rewardCycle: number;
  }) {
  const { hashMode, data } = decodeBtcAddress(poxAddress);
  - const hashModeBuffer = bufferCV(new BN(hashMode, 10).toBuffer());
  + const hashModeBuffer = bufferCV(new BN(hashMode, 10).toArrayLike(Buffer));
  const hashbytes = bufferCV(data);
  const address = tupleCV({
  hashbytes,
  @@ -708,7 +708,7 @@ export class StackingClient {
  modifyLockTxFee({ tx, amountMicroStx }: { tx: StacksTransaction; amountMicroStx: BN }) {
  const fee = tx.auth.getFee() as BN;
  (tx.payload as ContractCallPayload).functionArgs[0] = uintCV(
  - new BN(amountMicroStx.toString(10), 10).sub(fee).toBuffer()
  + new BN(amountMicroStx.toString(10), 10).sub(fee).toArrayLike(Buffer)
  );
  return tx;
  }
  