Update PHPUnit configuration and reorganize test files for rector rules

utils/rector/tests/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRector/ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest.php

@@ -28,7 +28,7 @@ class ChillBundleAddFormDefaultDataOnExportFilterAggregatorRectorTest extends Ab
         $this->doTestFile($file);
     }
 
-    public function provideData(): \Iterator
+    public static function provideData(): \Iterator
     {
         return self::yieldFilesFromDirectory(__DIR__.'/Fixture');
     }