PHP Key Util v2.0.0

This is a major release that drops support for PHP 8.0 and adds support for PHP 8.3.

What's Changed

  • GitHub Actions will run tests on push and pull_request instead of just push
  • Added composer.lock to the repo
  • Upgraded PHPUnit to version 10
  • Migrated PHPUnit configuration
  • Updated tests to use declare(strict_types=1); and added

Full Changelog: