apply new gradio 5 rules for caching examples

UserWarning: In future versions of Gradio, the `cache_examples` parameter will no longer accept a value of 'lazy'. To enable lazy caching in Gradio, you should set `cache_examples=True`, and `cache_mode='lazy'` instead.

app.py

@@ -135,7 +135,8 @@ with gr.Blocks() as demo:
         fn=generate_video,
         inputs=t2v_prompt,
         outputs=t2v_output,
-        cache_examples="lazy"
+        cache_examples=True,
+        cache_mode="lazy"
     )
     t2v_generate_btn.click(
         generate_video,