refactor: optimize training and tokenizer

modeling_clip.py

@@ -247,7 +247,6 @@ class JinaCLIPModel(JinaCLIPPreTrainedModel):
         )
         return self.visual_projection(self.vision_model(x=x))
 
-    @property
     def get_tokenizer(self):
         if not self.tokenizer:
             self.tokenizer = AutoTokenizer.from_pretrained(config._name_or_path)