Update app.py

app.py

@@ -1,6 +1,6 @@
 import os
 os.system("git clone https://github.com/etched-ai/open-oasis.git")
 os.system("cd open-oasis")
-os.system("pip install -r requirements.txt")
+os.system("pip install -r open-oasis/requirements.txt")
 os.system("huggingface-cli download Etched/oasis-500m oasis500m.pt") # DiT checkpoint
 os.system("huggingface-cli download Etched/oasis-500m vit-l-20.pt")