message: chore: fix a lint error, plus a type mismatch
  MultiSigSpendingCondition -> MultiSigSpendingConditionOpts
diff: @@ -499,14 +499,14 @@ function verifySingleSig(
  }
  function verifyMultiSig(
  - condition: MultiSigSpendingCondition,
  + condition: MultiSigSpendingConditionOpts,
  initialSigHash: string,
  authType: AuthType
  ): string {
  const publicKeys: StacksPublicKey[] = [];
  let curSigHash = initialSigHash;
  let haveUncompressed = false;
  - let numSigs = new Uint16Array(1);
  + const numSigs = new Uint16Array(1);
  numSigs[0] = 0;
  for (const field of condition.fields) {
  