apply rector rules: php up to php82

src/Bundle/ChillMainBundle/Export/AggregatorInterface.php

@@ -78,7 +78,7 @@ interface AggregatorInterface extends ModifierInterface
      *
      * @return Closure where the first argument is the value, and the function should return the label to show in the formatted file. Example : `function($countryCode) use ($countries) { return $countries[$countryCode]->getName(); }`
      */
-    public function getLabels($key, array $values, $data);
+    public function getLabels($key, array $values, mixed $data);
 
     /**
      * give the list of keys the current export added to the queryBuilder in