message: fix(account-lib): fix validate algo address test
  This change changes the spy to be put on the
  validateAddress method rather than sender because
  the latter is moot and doesn't do validation.
  ticket:
diff: @@ -53,7 +53,7 @@ describe('Algo Transaction Builder', () => {
  });
  it('should validate sender address is a valid algo address', () => {
  - const spy = sinon.spy(txnBuilder, 'sender');
  + const spy = sinon.spy(txnBuilder, 'validateAddress');
  should.throws(
  () => txnBuilder.sender({ address: 'asdf' }),
  (e: Error) => e.name === AddressValidationError.name,
  