Cuda fix 2

Try to fix cuda.

start.py

@@ -1,15 +1,11 @@
 import subprocess
-import os
 
 # Uninstall the existing llama-cpp-python package
 subprocess.run("pip uninstall -y llama-cpp-python", shell=True)
 
-# Set the required environment variables for installing with CUDA support
-os.environ["CMAKE_ARGS"] = "-DLLAMA_CUBLAS=on"
-os.environ["FORCE_CMAKE"] = "1"
-
 # Install llama-cpp-python with CUDA support
-subprocess.run("pip install llama-cpp-python", shell=True)
+install_command = "CMAKE_ARGS='-DLLAMA_CUBLAS=on' pip install llama-cpp-python"
+subprocess.run(install_command, shell=True)
 
 # Start the Hugging Face Space
 subprocess.run("uvicorn app:app --host 0.0.0.0 --port 7860", shell=True)