Upgrade to 4.3.1 help

Remove the "kint-php/kint" line in your composer.json, and run `composer update`.

Code:

    {
        ...
        "require": {
            ...
            "kint-php/kint": "^4.2",  <-- Remove this line
            ...
        },
        ...
    }

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper