Description:

This PR makes the ordered imports behavior explicit in the Ibexa code style preset. Instead of relying on the upstream default configuration of ordered_imports, the preset now defines the intended import grouping order directly, so class, function, and const imports are grouped consistently, and each group is sorted alphabetically. This avoids behavior changes caused by future php-cs-fixer default changes.

For example, input like:

  use function Symfony\Component\DependencyInjection\Loader\Configurator\tagged_iterator;
  use Symfony\Component\DependencyInjection\Reference;
  use const Symfony\Component\DependencyInjection\Loader\Configurator\SOME_CONST;
  use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;

is now expected to be formatted as:

  use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
  use Symfony\Component\DependencyInjection\Reference;

  use function Symfony\Component\DependencyInjection\Loader\Configurator\tagged_iterator;

  use const Symfony\Component\DependencyInjection\Loader\Configurator\SOME_CONST;

The PR also strengthens test coverage by adding a regression test for grouped imports and running the same expectations against both Ibexa46RuleSet and Ibexa50RuleSet.

For QA:

Documentation: