Update app.py

app.py

@@ -1,7 +1,7 @@
 import os
 os.system("pip uninstall mmcv-full")
 os.system("mim install 'mmengine>=0.6.0'")
-os.system("pip install mmcv-full -f https://download.openmmlab.com/mmcv/dist/cpu/torch2.0/index.html")
+os.system("mim install 'mmcv-lite>=2.0.0rc4,<2.1.0'")
 os.system("mim install 'mmdet>=3.0.0,<4.0.0'")
 os.system("mim install 'mmyolo'")
 os.system("pip install -e .")