The substring3 opcode got error when run with `runtime` env.

[vuvoth]

Describe the bug

Got error when using substring3 opcode. But work well with the Algorand goal command line.

Expected Behavior

Run substring3 successful

Current Behavior

Return error when running substring3
Error

Error: RUNTIME_ERR1003: Type of data is incorrect. Expected byte[] but got bigint at line 14

Possible Solution

Steps to Reproduce

1. TEAL contract

This contract uses teal version 5.
Filename: string.teal.

#pragma version 5

int 0
txn ApplicationID
==
bnz on_creation

byte "result"
byte "this_is_not_bug"

int 0 
int 1 

substring3

app_global_put

int 1
return

on_creation:
int 1
return

2. Test file

const { getProgram } = require('@algo-builder/algob');
const { Runtime, AccountStore } = require('@algo-builder/runtime');
const { types } = require('@algo-builder/web');
const { assert } = require('chai');
const { convert } = require('@algo-builder/algob');


const minBalance = BigInt(1e6);
const masterBalance = BigInt(10e6);
const amount = BigInt(1e6);


describe("Test String", function () {
    let testAccount;
    let runtime;
    let executorProgram;
    let appID;
    this.beforeEach(async () => {
        // prepare smart contract
        testAccount = new AccountStore(masterBalance);
        runtime = new Runtime([testAccount]);
        executorProgram = getProgram("string.teal");

        // deploy application
        appID = runtime.addApp({
            sender: testAccount.account,
            globalBytes: 32,
            globalInts: 32,
            localBytes: 8,
            localInts: 8
        }, {}, executorProgram);
    });

    function syncAccounts() {
        testAccount = runtime.getAccount(testAccount.address);
    }

    it("Test", () => {
        const fee = 4000;
        const txnParams = {
            type: types.TransactionType.CallApp,
            sign: types.SignType.SecretKey,
            fromAccount: testAccount.account,
            appID: appID,
            payFlags: { totalFee: fee }
        };

        runtime.executeTx(txnParams);
        
        const result = runtime.getGlobalState(txnParams.appID, 'result');
        console.log(result);
    })
})

Environment

• OS: MacOS
• Node.js version: v14
• algob version: 2.1.0

Thanks for your support! ❤️

[vuvoth]

I created pull request #505 to fix this bug. Please check it. Thanks! ❤️