message: feat: multisig spending condition tests use integers, not BigNums
diff: @@ -144,8 +144,8 @@ test('Multi sig spending condition uncompressed', () => {
  // auth.rs: tx_stacks_spending_condition_p2sh() (compressed multisig)
  test('Multi sig P2SH spending condition compressed', () => {
  const addressHashMode = AddressHashMode.SerializeP2SH;
  - const nonce = new BigNum(456);
  - const fee = new BigNum(567);
  + const nonce = 456;
  + const fee = 567;
  const pubKey = '03ef2340518b5867b23598a9cf74611f8b98064f7d55cdb8c107c67b5efcbc5c77';
  const pubKeys = [pubKey, pubKey, pubKey];
  @@ -210,8 +210,8 @@ test('Multi sig P2SH spending condition compressed', () => {
  // auth.rs: tx_stacks_spending_condition_p2wsh()
  test('Multi sig P2WSH spending condition compressed', () => {
  const addressHashMode = AddressHashMode.SerializeP2WSH;
  - const nonce = new BigNum(456);
  - const fee = new BigNum(567);
  + const nonce = 456;
  + const fee = 567;
  const pubKey = '03ef2340518b5867b23598a9cf74611f8b98064f7d55cdb8c107c67b5efcbc5c77';
  const pubKeys = [pubKey, pubKey, pubKey];
  @@ -274,10 +274,10 @@ test('Multi sig P2WSH spending condition compressed', () => {
  // auth.rs: tx_stacks_auth()
  test('Spending conditions', () => {
  - const bn123 = new BigNum(123);
  - const bn345 = new BigNum(345);
  - const bn456 = new BigNum(456);
  - const bn567 = new BigNum(567);
  + const bn123 = 123;
  + const bn345 = 345;
  + const bn456 = 456;
  + const bn567 = 567;
  const signer = '11'.repeat(20);
  const signatureFF = createMessageSignature('ff'.repeat(65));
  const signatureFE = createMessageSignature('fe'.repeat(65));
  