Update dependency llama_cpp_python to v0.2.56

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
llama_cpp_python (changelog)	==0.2.55 -> ==0.2.56

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Release Notes

abetlen/llama-cpp-python (llama_cpp_python)

### [`v0.2.56`](https://togithub.com/abetlen/llama-cpp-python/blob/HEAD/CHANGELOG.md#0256) [Compare Source](https://togithub.com/abetlen/llama-cpp-python/compare/v0.2.55...v0.2.56) - feat: Update llama.cpp to [ggerganov/llama.cpp@`c2101a2`](https://togithub.com/ggerganov/llama.cpp/commit/c2101a2e909ac7c08976d414e64e96c90ee5fa9e) - feat(server): Add endpoints for tokenize, detokenize and count tokens by [@​felipelo](https://togithub.com/felipelo) in [#​1136](https://togithub.com/abetlen/llama-cpp-python/issues/1136) - feat: Switch embed to llama_get_embeddings_seq by [@​iamlemec](https://togithub.com/iamlemec) in [#​1263](https://togithub.com/abetlen/llama-cpp-python/issues/1263) - fix: Fixed json strings grammar by blacklisting character control set by [@​ExtReMLapin](https://togithub.com/ExtReMLapin) in [`d02a9cf`](https://togithub.com/abetlen/llama-cpp-python/commit/d02a9cf16ff88ad011e2eb1ce29f4d9400f13cd1) - fix: Check for existence of clip model path by [@​kejcao](https://togithub.com/kejcao) in [#​1264](https://togithub.com/abetlen/llama-cpp-python/issues/1264)

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