Related to #378

A the package tries to autoloadthe AddressValidator constraint, Symfony throws the following error on container compilation:

Service id "Bazinga\GeocoderBundle\Validator\Constraint\AddressValidator" looks like a FQCN but no corresponding class or interface exists.

This is caused by AddressValidator extending Symfony\Component\Validator\ConstraintValidator, which is not available because symfony/validator is not listed as a requirement in composer.json — only as a dev dependency.

Adding symfony/validator manually resolves the issue:

composer require symfony/validator

Expected behavior: Either add symfony/validator as a proper requirement, or make the AddressValidator registration in config/services.php conditional on the package being available.