Update app.py

app.py

@@ -4,6 +4,9 @@ from multit2i import (load_models, infer_fn, infer_rand_fn, save_gallery,
     change_model, warm_model, get_model_info_md, loaded_models,
     get_positive_prefix, get_positive_suffix, get_negative_prefix, get_negative_suffix,
     get_recom_prompt_type, set_recom_prompt_preset, get_tag_type, randomize_seed, translate_to_en)
+import os
+os.system("pip install --upgrade diffusers")
+
 from diffusers import StableDiffusionPipeline, load_lora_weights
 import torch