Add validate method to PersonIdentifierEngineInterface and related classes

- Introduced `validate` method in `PersonIdentifierEngineInterface`.
- Added `ValidIdentifierConstraint` to `PersonIdentifier` entity.
- Updated `PersonIdentifierWorker` to implement the new `validate` method.

src/Bundle/ChillPersonBundle/PersonIdentifier/PersonIdentifierManagerInterface.php

@@ -24,6 +24,8 @@ interface PersonIdentifierManagerInterface
 
     /**
      * @param int|PersonIdentifierDefinition $personIdentifierDefinition an instance of PersonIdentifierDefinition, or his id
+     *
+     * @throw PersonIdentifierNotFoundException
      */
     public function buildWorkerByPersonIdentifierDefinition(int|PersonIdentifierDefinition $personIdentifierDefinition): PersonIdentifierWorker;
 }