Update requirements.txt

requirements.txt

@@ -1,9 +1,7 @@
-# Force binary wheels for llama-cpp-python (avoid gcc / cmake builds on Spaces)
+# Use CPU wheels for llama-cpp-python (avoid building from source)
 --prefer-binary
---only-binary llama-cpp-python
 --extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cpu
 
-# Core dependencies
-llama-cpp-python>=0.2.11
+llama-cpp-python==0.2.90
 gradio>=4.0.0
 huggingface_hub>=0.20.0