Increase GPU duration to 300s for longer generation time

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -23,7 +23,7 @@ pipe.vae.enable_slicing()
 print("Model loaded successfully!")
 
 
-@spaces.GPU(duration=180)
+@spaces.GPU(duration=300)
 def generate_interpolation(
     first_image,
     last_image,