refine pip install to avoid download git lfs data

app.py

@@ -16,7 +16,7 @@ if os.getenv('SYSTEM') == 'spaces':
     subprocess.run(shlex.split('pip uninstall -y modelscope'))
     subprocess.run(
         shlex.split(
-            'pip install git+https://github.com/modelscope/modelscope@fe67395')
+            'GIT_LFS_SKIP_SMUDGE=1 git clone  https://github.com/modelscope/modelscope && cd modelscope && git checkout fe67395 && pip install -e .')
     )
 
 from modelscope.outputs import OutputKeys