add petersburg evm version to smart contract verifier

[ayrat555]

Changelog

• add petersburg evm version to smart contract verifier
• make petersburg default evm version

[coveralls]

Pull Request Test Coverage Report for Build 14b6a17e-0f05-4b03-b90b-c51bf45adea4

• 5 of 5 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 83.254%

---

Totals
Change from base Build fa78c39f-3560-4dee-ae87-834dbc4dd4c2:	0.1%
Covered Lines:	4350
Relevant Lines:	5225

---

💛 - Coveralls

[vbaranov]

@ayrat555

I don't see a new ENV version petersburg in the select.

Didn't you forget to add it to https://github.com/poanetwork/blockscout/blob/0c67eae2f315668b548925ca20d55d57bf5bd823/apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_controller.ex#L7 ?

And why do we have a list of EVM versions in two places in the code? Could we define it once?

[ayrat555]

@vbaranov my bad. I fixed it

[vbaranov]

@ayrat555

I've tested it in Sokol. And no, verification doesn't work for me for just created smart-contract in Sokol.

contract address: 0x41b3b1c86cf44d04e39077be109533d0304b5773
source code:

pragma solidity ^0.5.6;

contract testContract {
    uint public num;
    
    function setStr(uint val) public {
        num = val;
    }
    
    function getStr() public view returns (uint) {
        return num;
    }
}

[vbaranov]

@ayrat555

test/block_scout_web/features/address_contract_verification_test.exs:16

failed. Please take a look.