Use official extra-index-url for llama-cpp-python CPU wheels

requirements.txt

@@ -2,4 +2,5 @@ fastapi==0.109.0
 uvicorn[standard]==0.27.0
 huggingface-hub>=0.25.0
 python-multipart==0.0.6
-https://github.com/abetlen/llama-cpp-python/releases/download/v0.2.90/llama_cpp_python-0.2.90-cp312-cp312-manylinux_2_31_x86_64.whl
+--extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cpu
+llama-cpp-python