Replace deprecated Symfony Console add() with addCommand()

[ozdemirburak]

This PR fixes the warning below:

Since symfony/console 7.4: The "Symfony\Component\Console\Application::add()" method is deprecated and will be removed in Symfony 8.0, use "Symfony\Component\Console\Application::addCommand()" instead.

[tomasnorre]

Wouldn't you need to bump the symfony/console to ^7.4 to ensure the new command is present? I think that's why the "lowest" tests are failing.

"symfony/console": "^7.4" requires PHP >= 8.2
"tightenco/jigsaw": "1.8.3" requires PHP ^8.2

So it should be possible to "just" bump the requirements