Fix deprecated call to model load

Author: Oxid15

cascade/trainers/trainer.py

@@ -76,7 +76,7 @@ def _load_last_model(line: ModelLine) -> Tuple[Model, int]:
         model_num = len(line) - 1
         while True:
             try:
-                model = line.load(model_num, only_meta=False)
+                model = line.load(model_num)
                 return model, model_num
             except Exception as e:
                 logger.warning(f"Model {model_num} files were not found\n{e}")