Update llama_cpp_python to fix issues in mac

[DaramG]

There was some internal server error when running run-mac.sh on Mac.
To fix this, I updated llama_cpp_python version to the latest version.
This will resolve #73 and #95 .

[henriquezago]

It didn't solve my issue (#95).

[adevart]

This worked for me, thanks. I was having the same issue as #95. I updated the version number then restarted the server and it loaded the model ok.

I get a similar error when loading the 7b chat model but that's due to it being in .bin format instead of .gguf like code-7b and gives the following error, which shows the 500 loading error in the UI:
gguf_init_from_file: invalid magic characters tjgg.
error loading model: llama_model_loader: failed to load model from ./models/llama-2-7b-chat.bin