Update app.py

app.py

@@ -33,9 +33,9 @@ def download_liveportrait():
             os.system(f"git clone https://github.com/KwaiVGI/LivePortrait.git {liveportrait_path}")
         
         # 安装依赖
-        # os.chdir(liveportrait_path)
-        # print("Installing LivePortrait dependencies...")
-        # os.system("pip install -r requirements.txt")
+        os.chdir(liveportrait_path)
+        print("Installing LivePortrait dependencies...")
+        os.system("pip install -r requirements.txt")
         
         # 构建 MultiScaleDeformableAttention 模块
         dependency_path = "src/utils/dependencies/XPose/models/UniPose/ops"