remove useless dev args in tests

tests/test_worker.py

@@ -20,7 +20,7 @@ def test_process_split(tmp_path, downloaded_images):
 
     worker = DatasetExtractor()
     # Parse some arguments
-    worker.args = Namespace(dev=False, database=None)
+    worker.args = Namespace(database=None)
     worker.configure_cache()
     worker.cached_images = dict()