Update app.py

app.py

@@ -20,7 +20,7 @@ os.system("pip install gradio_image_prompter==0.1.0")
 os.system("pip install torch==2.4.0 torchvision==0.18.0 --index-url https://download.pytorch.org/whl/cu124")
 
 import subprocess
-subprocess.run('pip install flash-attn==2.7.4.post1 --no-build-isolation', env={'FLASH_ATTENTION_SKIP_CUDA_BUILD': "TRUE"}, shell=True)
+os.system('pip install flash-attn==2.7.4.post1 --no-build-isolation', env={'FLASH_ATTENTION_SKIP_CUDA_BUILD': "TRUE"}, shell=True)
 
 import sys
 import threading