Add named dictionary autowiring

[ErwannRousseau]

Summary

Add named autowiring aliases for dictionaries declared through knp_dictionary.dictionaries.

Details

• Inject configured dictionaries with arguments such as Dictionary $entityClassIconsDictionary.
• Support explicit selection with #[Target("entity_class_icons.dictionary")].
• Resolve named aliases through the dictionary collection to preserve the bundle initialization order.
• Keep internal autowiring services separate from configured dictionary service IDs.
• Preserve existing named aliases and suppress aliases for invalid or ambiguous normalized names.
• Document direct injection, target selection, alias precedence, and collection fallback.
• Cover the real bundle service graph, service-ID collisions, and collection access with PHPSpec.

Closes #154