solidity – Why ABI and Contract Source Code Are Not Visible on Etherscan’s Smart Contract

I recently posted a small Lottery contract on the ethereum rinkeby network. The contract got deployed successfully however I am not able to see Contract source code and ABI on the Etherscan portal. Below is the address

https://rinkeby.etherscan.io/address/0xa19Ea5690dD32BFf3081cB0d81f91170AD859E0C#code

Other people from my training group deployed their code they got ABI and other details. Below is the URL

https://rinkeby.etherscan.io/address/0xc09eb46ce7A8b32F4339390cB94A3568C20eCaa9#code

Below is Solidity code.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

contract Lottery{

    address payable public manager;
    address payable[] public players;

    constructor()  {
        manager = payable(msg.sender);

    }

    function enter() public payable{
        require (msg.value > 0.01 ether);

        players.push(payable(msg.sender));
    }

    function random_num() private view returns (uint){
        return uint(keccak256(abi.encodePacked(block.difficulty, block.timestamp, players)));
    }

    function pick_winner() public restricted_func {
        uint index = random_num() % players.length;
        players[index].transfer(address(this).balance);
        players = new address payable[](0);
    }

    function get_list_players() public view returns(address payable[] memory) {
        return players;
    }


    modifier restricted_func{
        require (msg.sender == manager);
        _;
    }

}

And below is my Deploy.js

const HDWalletProvider = require('@truffle/hdwallet-provider');
const Web3 = require('web3');

const { abi, evm } = require('./compile');

console.log(abi);


provider = new HDWalletProvider(
  "my secret code phrase",
  "https://rinkeby.infura.io/v3/infura_key"
);

const web3 = new Web3(provider);

const deploy = async () => {
  const accounts = await web3.eth.getAccounts();

  console.log('Attempting to deploy from account', accounts[0]);

  const result = await new web3.eth.Contract(abi)
    .deploy({ data: evm.bytecode.object })
    .send({ gas: '1000000', from: accounts[0] });

  console.log(abi);
  console.log('Contract deployed to', result.options.address);
  provider.engine.stop();
};

deploy();

Could someone please help me understand why?
Many thanks in advance!!